MATHS [1 Mark Question Answer]

111 ÷ 3 = 37
222 ÷ 6 = 37
333 ÷ 9 = 37
444 ÷ 12 =37
555 ÷ 15 = 37
666 ÷ 18 =37

Yes, A number a is 1
a ÷ a = a
1 ÷ 1 = 1

The largest number of four digits = 9999 and, the smallest number of six digits = 100000
Difference = 100000 – 9999 = 90001

Since, we know that any number divided by 1, always gives the number itself.
x can be any number 1, 2, 3, 4, 5, 6, …………, and so on.

For example
3 ÷ 0 = Not defined or 19 ÷ 0 is not defined
The above statement is true.

For example
0 ÷ 138 = 0, 0 ÷ 2028 = 0, 0 ÷ 15140 = 0
The above statement is true.

For example
2 ÷ 2 = 1, 128 ÷ 128 = 1, 256 ÷ 256 = 1
The above statement is true.

For example
2 + 1 =2, 18 + 1 = 18, 129 + 1 = 129
The above statement is true.

For example
5 and 8 are whole numbers, but 5 + 8 is not a whole number
Closure property does not exist for the division.

Greatest number of three digits = 999
and Smallest number of five digits = 10000
Required product = 999 x 10000 = 9990000

3333 x 987 + 13 x 3333
= 3333 x (987 + 13) (using distributivity)
= 3333 x 1000 = 3333000

8324 x 1.945 – 8324 x 945
= 8324 x (1945 – 945) (using distributivity)
= 8324 x 1000 = 8324000

7984 x 15 – 7984 x 5
= 7984 x (15 – 5) (using distributivity)
= 7984 x 10 = 79840

55873 x 94 + 55873 x 6
= 55873 x (94 + 6) (using distributivity)
= 55873 x 100 = 5587300

284 x 12-284 x 2
= 284 x (12-2) (using distributivity)
= 284 x 10 = 2840

679 x 8 + 679 x 2
= 679 x (8 + 2) (using distributivity)
= 679 x 10 = 6790

3023 x 723
= (3000 + 20 + 3) x 723
= 3000 x 723 + 20 x 723 + 3 x 723
= 2169000 + 14460 + 2169 = 2185629

924 x 988
= (900 + 20 + 4) x 988
= 900 x 988 + 20 x 988 + 4 x 988
= 889200 + 19760 + 3952 = 912912

548 x 98
= (500 + 40 + 8) x 98
= 500 x 98 + 40 x 98 + 8 x 98
= 49000 + 3920 + 784 = 53704

446 x 10002
= 446 x (10000 + 2)
= 446 x 10000 x 446 x 2
= 4460000 + 892 = 4460892

385 x 1004
= 385 x (1000 + 4)
= 385 x 1000 x 385 x 4
= 385000 + 1540 = 386540

984 x 102
= 984 x (100 + 2)
= 984 x 100 x 984 x 2
= 98400 + 1968 = 100,368

225 x 20 x 50 x 4
= (225 x 4) x (20 x 50) = 900 x 1000 = 900, 000

25 x 444 x 4
25 x 4 = 100
25 x 444 x 4 = (25 x 4) x 444 = 100 x 444 = 444000

2 x 487 x 50
2 x 50=100
2 x 487 x 50 = (2 x 50) x 487 = 100 x 487 = 48700

The inverse does not exit.

It is not possible to identify the number

23 + (-23) = 0
The property used as Additive inverse satisfied by 0.

16 + 0=16
The property used as Existence of identity satisfied by 16

(15 – 12) x 18= 15 x 18- 12 x 18 (15 – 12) x 18 = 3 x 18 = 54
and 15 x 18 – 12 x 18 = 270 – 216 = 54
The property used as Distributive over subtraction satisfied by 54

(7 + 6) x 10 = 7 x 10 + 6 x 10 (7 + 6) x 10= 13 x 10= 130
and 7 x 10 + 6 x 10 = 70 + 60 = 130
The property used as Distributive over addition satisfied by 130.

3+ (5 + 4)=(3 + 5)+ 4 =3+(5+ 4) = 3 + 9=12 and (3+ 5)+ 4 = 8 + 4=12
The property used as Associative law of addition satisfied by 12.

8 + 7=15
The property used as closure property satisfied by 15.

Yes, because any set of three whole numbers if the sum of any two whole numbers is added to the third whole number, then whatever be their order, the sum will remain same.

21 + 22 + 23 + 24 + 25 + 75 + 76 + 77 + 78 + 79
= (21 + 79) + (22 + 78) + (23 + 77) + (24 + 76) + (25 + 75) (by associative law)
= 100 + 100+ 100+ 100 + 100 = 500

21 + 22 + 23 + 24 + 25 + 75 + 76 + 77 + 78 + 79
= (21 + 79) + (22 + 78) + (23 + 77) + (24 + 76) + (25 + 75) (by associative law)
= 100 + 100+ 100+ 100 + 100 = 500

162 + 253 + 338 + 47
= (162 + 338) + (253 + 47) (by associative law)
= 500 + 300 = 800

237 + 308 + 163
= (237 + 163) + 308 (by associative law)
= 400 + 308 = 708