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95 questions · self-marked practice — reveal the answer and mark yourself.

Question 11 Mark
Write (T) for true and (F) for false against the following statements:The whole number 1 has no predecessor.
Answer
False.
Solution:
The predecessor of 1 is 0.
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Question 21 Mark
Fill in the blanks to make the following a true statement:
864 + 2006 = 2006 + ____________.
Answer
864 + 2006 = 2006 + 864.
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Question 51 Mark
Fill in the blanks:
Product of two odd numbers is an ________________ number.
Answer
Product of two odd numbers is an odd number.
Solution:
Example: 5 × 7 = 35, which is an odd number.
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Question 61 Mark
State the property used in the following statements:
(29 × 36) × 18 = 29 × (36 × 18)
Answer
Associatively of multiplication.
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Question 81 Mark
Replace each * by the correct digit in the following:
$\ \ \ \ \ \ 9\ 1\ 7\\ \underline{-\ *\ 5\ *\ }\\\ \ \ \ \ 5\ *\ 8$
Answer
$\ \ \ 917\\ \underline{– 359\ }\\\underline{\ \ \ 558\ }$
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Question 91 Mark
Fill in the blanks to make the following a true statement:
59 × 66 + 59 × 34 = 59 × (_____ + _____)
Answer
59 × 66 + 59 × 34 = 59 × (66 + 34)
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Question 111 Mark
Find the value of:
32277 ÷ (648 - 39)
Answer
32277 ÷ (648 - 39) (Following BODMAS property)
= 32277 ÷ (609)
= 53
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Question 121 Mark
Write (T) for true and (F) for false against the following statements:500 is the predecessor of 499.
Answer
False.Solution:
500 is the successor of 501.
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Question 131 Mark
Fill in the blanks to make the following a true statement:
53501 + (574 + 799) = 574 + (53501 + _______)
Answer
53501 + (574 + 799) = 574 + (53501 + 799)
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Question 141 Mark
Replace each * by the correct digit in the following:
$\ 6\ 1\ 7\ 2\\ \underline{*\ *\ 6\ 9}\\2\ 9\ *\ *$
Answer
$\ \ \ \ 6172\\ \underline{-\ 3569}\\ \underline{\ \ \ \ 2903}$
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Question 161 Mark
Perform the following subtractions. Check your result by the corresponding additions.
100000 - 78987
Answer
Subtraction: 100000 - 78987 = 21013
Addition: 21013 + 78987 = 100000
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Question 201 Mark
Fill in the blanks to make the following a true statement:1946 + ___________ = 984 + 1946
Answer
1946 + 984 = 984 + 1946
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Question 211 Mark
Fill in the blanks to make the following a true statement:
286 × 753 = _____ × 286
Answer
286 × 753 = 753 × 286
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Question 231 Mark
Fill in the blanks to make the following a true statement:
246 × 1 = _____________.
Answer
246 × 1 = 246.
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Question 261 Mark
Fill in the blanks to make the following a true statement:
13 × 100 × _____ = 1300000
Answer
13 × 100 × 1000 = 1300000
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Question 271 Mark
Perform the following subtractions. Check your result by the corresponding additions.
6237 - 694
Answer
Subtraction: 6237 - 694 = 5543
Addition: 5543 + 694 = 6237
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Question 281 Mark
State the property used in the following statements:
63 × 126 - 63 × 26 = 63 × (126 - 26)
Answer
Distributive law of multiplication over subtraction.
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Question 301 Mark
Fill in the blanks to make the following a true statement:
458 + 639 = 639 + ________.
Answer
458 + 639 = 639 + 458.
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Question 321 Mark
Write (T) for true and (F) for false for the following statements:
The sum of an even number and an odd number is an odd number.
Answer
True.
Solution:
The sum of an even and an odd number is an odd number.
Example: 5 + 4 = 9, which is an odd number.
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Question 341 Mark
Write (T) for true and (F) for false against the following statements:The successor of a two-digit number is always a two-digit number.
Answer
False.Solution:
The successor of two-digit number will be a also three digit-number. If it is 99.
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Question 351 Mark
Find the value of:
981 + 5720 ÷ 10
Answer
981 + 5720 ÷ 10
= 981 + (5720 ÷ 10) (Following DMAS property)
= 981 + 572
= 1553
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Question 371 Mark
Write (T) for true and (F) for false against the following statements:
Zero is the smallest natural number.
Answer
False.
Solution:
1 is smallest natural number.
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Question 381 Mark
Write (T) for true and (F) for false against the following statements:Zero is the smallest whole number.
Answer
True.
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Question 391 Mark
Replace each * by the correct digit in the following:
$1\ 0\ 0\ 0\ 0\ 0\ 0\\ \underline{-\ \ ****\ 1\ }\\ \ \ *7\ 0\ 4\ 2\ *$
Answer
$1000000\\ \underline{-29571} \\\underline{\ \ \ 70429}$
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Question 401 Mark
Find the value of:
(1573 ÷ 1573) - (1573 ÷ 1573)
Answer
(1573 ÷ 1573) - (1573 ÷ 1573) (Following BODMAS property)
= 1 - 1
= 0
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Question 421 Mark
Find the products:
$\ \ 3709\\\underline{\times\ \ 89\ }\\\underline{\ \ \ \ \ \ \ \ \ \ }$
Answer
$\ \ \ 3709\\\underline{\ \times\ 89\ \ }\\\underline{\ 330101}$
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Question 451 Mark
Write 'T' for true and 'F' for false in the following:
Every whole number is a natural number.
Answer
False.
Solution:
0 is a whole number but not a natural number.
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Question 491 Mark
State the property used in the following statements:
16 × 32 is a whole number.
Answer
Closure property.
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Question 501 Mark
Perform the following subtractions. Check your result by the corresponding additions.
21205 - 10899
Answer
Subtraction: 21205 - 10899 = 10306
Addition: 10306 + 10899 = 21205
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Question 511 Mark
Write (T) for true and (F) for false against the following statements:Every natural number is a whole number.
Answer
True.
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Question 541 Mark
Fill in the blanks to make the following a true statement:
1369 × 0 = ________________.
Answer
1369 × 0 = 0.
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Question 551 Mark
Write (T) for true and (F) for false against the following statements:The whole number 0 has no predecessor.
Answer
True.
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Question 561 Mark
Fill in the blanks:
______________ is a whole number which is not a natural number.
Answer
0 is a whole number which is not a natural number.
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Question 571 Mark
Write (T) for true and (F) for false for the following statements:
The sum of two even numbers is an even number.
Answer
True.
Solution:
The sum of two even numbers is an even number.
Example: 2 + 4 = 6, which is an even number.
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Question 581 Mark
Fill in the blanks:
______________ is the multiplicative identity for whole numbers.
Answer
1 is the multiplicative identity for whole numbers.
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Question 591 Mark
Write 'T' for true and 'F' for false in the following:
1 has no predecessor in whole numbers.
Answer
False.
Solution:
1 - 1 = 0 is a predecessor of 1, which is a whole number.
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Question 621 Mark
Fill in the blanks:
$\text{a}\ne 0 \text{ and a} \times\text{a} = \text{a} \Rightarrow\text{a} =\ ?$
Answer
$\text{a}\ne 0 \text{ and a} \times\text{a} = \text{a} \Rightarrow\text{a} =\ \text{a}$
Solution:
Given: a × a = a
$\Rightarrow\text{a}=\frac{\text{a}}{\text{a}}=1,\text{a}\ne0$
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Question 631 Mark
How many whole numbers are there between 1064 and 1201?
Answer
Number of whole numbers between 1201 and 1064 = (1201 - 1064) - 1
= 137 - 1
= 136
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Question 641 Mark
Find the products:
$ \ 15208\\\underline{\times\ 542\ }\\\underline{\ \ \ \ \ \ \ \ \ \ \ }$
Answer
$\ \ \ \ \ 15208\\\underline{\ \ \ \times\ 542\ }\\\underline{\ 8242736\ }$
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Question 651 Mark
Find the value of:
1507 - (625 ÷ 25)
Answer
1507 - (625 ÷ 25) (Following BODMAS property)
= 1507 - 25
= 1482
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Question 671 Mark
Write (T) for true and (F) for false against the following statements:1 is the smallest whole number.
Answer
False.Solution:
0 is the smallest whole number.
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Question 681 Mark
Fill in the blanks:
Sum of two odd numbers is an ____________ number.
Answer
Sum of two odd numbers is an even number.
Solution:
Example: 3 + 5 = 8, which is an even number.
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Question 691 Mark
Fill in the blanks to make the following a true statement:
38 × (91 × 37) = _____ × (38 × 37)
Answer
38 × (91 × 37) = 91 × (38 × 37)
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Question 701 Mark
Fill in the blanks to make the following a true statement:
68 × 95 = 68 × 100 - 68 _____.
Answer
68 × 95 = 68 × 100 - 68 × 5.
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Question 711 Mark
State the property used in the following statements:
19 × 17 = 17 × 19
Answer
Commutative law in multiplication.
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Question 731 Mark
State the property used in the following statements:
72 × 98 + 72 × 2 = 72 × (98 + 2)
Answer
Distributive law of multiplication over addition.
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Question 741 Mark
Write (T) for true and (F) for false against the following statements:7000 is the successor of 6999.
Answer
True.
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Question 751 Mark
Write (T) for true and (F) for false for the following statements:
The sum of two odd numbers is an odd number.
Answer
False.
Solution:
The sum of two odd numbers may not be an odd number.
Example: 3 + 5 = 8, which is an even number.
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Question 771 Mark
Replace each * by the correct digit in the following:
$\ \ \ 5\ 0\ 0\ 1\ 0\ 0\ 3\\ \underline{-\ \ **\ 6\ 9\ 8\ 7}\\ \ \ 4\ \ 8\ 4 * * * *$
Answer
$\ \ \ 5001003\\ \underline{-\ 155987}\\ \underline{\ \ 4845016}$
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Question 781 Mark
Write 'T' for true and 'F' for false in the following:
Every natural number is a whole number.
Answer
True.
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Question 791 Mark
Fill in the blanks to make the following a true statement:
8063 + 0 = ____________.
Answer
8063 + 0 = 0 + 8063
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Question 811 Mark
Write (T) for true and (F) for false against the following statements:The natural number 1 has no predecessor.
Answer
True.
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Question 821 Mark
Find the products:
$\ 458\\\underline{\times67\ }\\\underline{\ \ \ \ \ \ \ \ }$
Answer
$\ \ \ \ \ \ 458\\\underline{\ \times\ 67}\\\underline{\ 30686}$
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Question 841 Mark
Write 'T' for true and 'F' for false in the following:
0 is the smallest natural number.
Answer
False.
Solution:
0 is not a natural number.
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Question 851 Mark
Find the products:
$\ \ 4617\\\underline{\times\ 234\ }\\\underline{\ \ \ \ \ \ \ \ \ \ \ }$
Answer
$\ \ \ \ \ 4617\\\underline{\ \times\ 234\ \ }\\\underline{\ 1080378}$
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Question 871 Mark
Write (T) for true and (F) for false against the following statements:Every whole number is a natural number.
Answer
False.Solution:
Natural numbers together with ‘0’ are called whole number.
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Question 891 Mark
Fill in the blanks.$\ \ \ 1000000\\\underline{-****\ 1}\\\underline{\ \ \ \ *7042* }$
Answer
$\ \ \ 1000000\\\underline{-****\ 1}\\\underline{\ \ \ \ *7042* }$
Then, we have:
$\ \ 1000000\\\underline{-\ 295711}\\\underline{\ \ \ \ 970429}$
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Question 901 Mark
Perform the following subtractions. Check your result by the corresponding additions.
1010101 - 656565
Answer
Subtraction: 1010101 - 656565 = 353536
Addition: 353536 + 656565 = 1010101
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Question 911 Mark
Fill in the blanks to make the following a true statement:
593 × 188 = 188 × _____________.
Answer
593 × 188 = 188 × 593.
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Question 931 Mark
Which is the smallest whole number?
Answer
0 (zero) is the smallest whole number.
All the natural numbers along with 0 are called whole numbers.
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Question 951 Mark
Write (T) for true and (F) for false against the following statements:The predecessor of a two-digit number is never a single-digit number.
Answer
False.Solution:
The predecessor of 10 is 9. Which is single-digit number.
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