Question 11 Mark
Write the following integers in the decreasing order: $51, -53, -8, 0, -2$
Answer$51 > 0 > -2 > -8 > -53$
View full question & answer→Question 21 Mark
Subtract: $-135$ from $-250$
Answer$-135$ from$ -250 = -250 - (-135) = -250 + 135 = -115$
View full question & answer→Question 31 Mark
Find the additive inverse of:
$0$
Answer$0 + 0 = 0$
So, the additive inverse of $0$ is $0$.
View full question & answer→Question 41 Mark
Simplify:
$1056 + (-798) + (-38) + 44 + (-1)$
Answer$1056 + (-798) + (-38) + 44 + (-1)$
$= 1056 + 44 – (798 + 38 + 1)$
$= 1100 – 837$
$= -263$
View full question & answer→Question 51 Mark
Divide: $-147$ by $-21$
Answer$-147$ by $-21$ $=\frac{-147}{-21}$ $=7$
View full question & answer→Question 61 Mark
Find an integer a such that: $5 + a = 0$
Answer$5 + a = 0 $
$\Rightarrow a = 0 - 5$
View full question & answer→Question 71 Mark
Indicate the following using $‘+’$ or $‘-‘$ sign: $7^\circ$C Below the freezing point
View full question & answer→Question 81 Mark
Simplify: $(-36) \times (72) + (-36) \times 28$
Answer$(-36) \times (72) + (-36) \times 28 $
$= (-2592) + (-1008) $
$= -2592 - 1008$
$ = -3600$
View full question & answer→Question 91 Mark
Which number is larger in the following pairs?$ -16, 8$
View full question & answer→Question 101 Mark
Add $-36$ to the difference of $-8$ and $-68.$
Answer$= -8 - (-68) + (-36) $
$= -8 + 68 - 36$
$ = 68 - (8 + 36) $
$= 68 - 44 = 24$
View full question & answer→Question 111 Mark
Add: $\ -493\\ \underline{\ +289\ } \\\underline{\ \ \ \ \ \ \ \ \ \ \ \ \ }$
Answer$\ -493\\ \underline{\ +289\ } \\\underline{\ -204\ \ }$
View full question & answer→Question 121 Mark
Fill in the blank. The smallest positive integer is ____.
AnswerThe smallest positive integer is 1.Solution:
View full question & answer→Question 131 Mark
Subtract: $-2768$ from $-287$
Answer$-2768$ from $-287 $
$= -287 - (-2768) $
$= -287 + 2768$
$ = 2481$
View full question & answer→Question 141 Mark
Subtract: $-92$ from $0$
Answer$-92$ from $0 = 0 - (-92) = 0 + 92 = 92$
View full question & answer→Question 151 Mark
Evaluate:$(-5) + (-6)$
Answer$(-5) + (-6) = -5 - 6 = -11$
View full question & answer→Question 161 Mark
Find the sum of: $-51, -203, 36$ and $-28$
Answer$(-51) + (-203) + 36 + (-28) $
$= -51 – 203 + 36 – 28$
$ = -282 + 36 $
$= -246$
View full question & answer→Question 171 Mark
Evaluate: $(-40) ÷ (-10)$
Answer$(-40)\div(-10)$ $=\frac{-40}{-10}$ $=\frac{(-1)\times40}{(-1)\times10}$ $=4$
View full question & answer→Question 181 Mark
Write the opposite of the following: Earning $Rs. 500$
AnswerSpending rupees $500$
View full question & answer→Question 191 Mark
Mark the following integers on a number line:
$-13$
View full question & answer→Question 201 Mark
Write the opposite of the following: Going 6m to the east
AnswerGoing $6m$ to the west
View full question & answer→Question 211 Mark
Which number is larger in the following pairs?
$0, -2$
View full question & answer→Question 221 Mark
Use convenient groupings and find the values of: $(-8) \times (-63) \times 9$
Answer$(-8) \times (-63) \times 9 = (-8) \times (-567) = 4536$
View full question & answer→Question 231 Mark
Multiply:
$-57$ by $0$
Answer$-57$ by $0$
$= -57 \times 0$
$= 0$
View full question & answer→Question 241 Mark
Which number is smaller the following pairs? $-13, -27$
Answer$-27 < -13$ Since $27$ is greater than $13, -27$ is smaller than $-13.$
View full question & answer→Question 251 Mark
Subtract:
$-28$ from $-43$
Answer$-28$ from $-43$
$= -43 - (-28)$
$= -43 + 28$
$= -15$
View full question & answer→Question 261 Mark
In the pairs given below, find the larger integer. $-4, -6$
Answer$-4, -6 -4$ Since $6$ is greater than $4, -4$ is greater than $-6.$
View full question & answer→Question 271 Mark
Multiply:
$0$ by $-31$
Answer$0$ by $-31$
$= 0 \times (-31)$
$= 0$
View full question & answer→Question 281 Mark
Find the additive inverse of:$-1001$
Answer$-1001 + 1001 = 0 $
$$So, the additive inverse of $-1001$ is $1001.$
View full question & answer→Question 291 Mark
Subtract: $-3012$ from $6250$
Answer$-3012$ from $6250 = 6250 - (-3012) = 6250 + 3012 = 9262$
View full question & answer→Question 301 Mark
Fill in the blank: (___) ÷ (-5) = 25
Answer (-125) ÷ (-5) = 25 Solution:
= 25 × -5 = -125 View full question & answer→Question 311 Mark
Write the following integers in the decreasing order: $-365, -515, 102, 413, -7$
Answer$413 > 102 > -7 > -365 > -515$
View full question & answer→Question 321 Mark
Multiply: $-18$ by $13$
Answer$-18$ by $13 = (-18) \times 13 = -234$
View full question & answer→Question 331 Mark
Find the sum of: $3002$ and $-888$
Answer$3002 + (-888) = 3002 – 888 = 2114$
View full question & answer→Question 341 Mark
Write the opposite of the following:
An increase of $8$
View full question & answer→Question 351 Mark
Write the following integers in the increasing order: $21, -106, -16, 16, 0, -2, -81$
Answer$-106 < -81 < -16 < -2 < 0 < 16 < 21$
View full question & answer→Question 361 Mark
Evaluate: $8 + (-16)$
Answer$8 + (-16) = 8 - 16 = -8$
View full question & answer→Question 371 Mark
Write the opposite of the following:
$5^\circ C $ below the freezing point
Answer$ 5^\circ C$ above freezing point
View full question & answer→Question 381 Mark
Evaluate: $(-36) ÷ 6$
Answer$(-36)\div6$$=\frac{-36}{6}$
$=(-1)\times\frac{36}{6}$
$=-6$
View full question & answer→Question 391 Mark
Write the successor of the following:
$-99$
AnswerThe successor of $-99:$
$-99 + 1 = -98$
View full question & answer→Question 401 Mark
Write the following integers in the increasing order: $-23, 12, 0, -6, -100, -1$
Answer$-100 < -23 < -6 < -1 < 0 < 12$
View full question & answer→Question 411 Mark
Add: $-\ 365\\ \underline{\ -87\ } \\\underline{\ \ \ \ \ \ \ \ \ \ \ }$
Answer$-\ 365\\\underline{\ -87}\\ \underline{-\ 452\ }$
View full question & answer→Question 421 Mark
Indicate the following using $‘+’$ or $‘-‘$ sign: $3\ km$ below sea level
View full question & answer→Question 431 Mark
Divide:
$0 $ by $-278$
Answer$0$ by $-278$
$=\frac{0}{-278}$
$=0$
View full question & answer→Question 441 Mark
Find the value of: $|7 - 4|$
Answer$|7 - 4| = |3|$ (The value of $|3|$ is $3$) $= 3$
View full question & answer→Question 451 Mark
Multiply: $-746$ by $-8$
Answer$-746$ by $-8 = (-746) \times (-8) = 5968$
View full question & answer→Question 461 Mark
Write the successor of the following: $201$
AnswerThe successor of $201: 201 + 1 = 202$
View full question & answer→Question 471 Mark
Find the additive inverse of:
$-57$
Answer$57 + 57 = 0$
So, the additive inverse of $-57$ is $57$.
View full question & answer→Question 481 Mark
Add:
$-\ 1065\\ \underline{\ -987\ }\\ \underline{\ \ \ \ \ \ \ \ \ \ \ \ \ }$
Answer $-\ 1065\\ \underline{\ -987\ }\\ \underline{-\ 2052\ }$
View full question & answer→Question 491 Mark
Divide: $-15625$ by $-125$
Answer$-15625$ by $-125$ $=\frac{-15625}{-125}$ $=125$
View full question & answer→Question 501 Mark
Write four integers less than $-6$ and four integers greater than $-6.$
AnswerFour integers less than $-6 ($i.e. four negative integers that lie to the left of $-6)$ are $-7, -8, -9$ and $-10$.
Four integers greater than $-6 ($i.e. four negative integers that lie to the right of $-6 )$ are $-5, -4, -3$ and $-2$.
View full question & answer→