SSLC (English Medium) Class 7 - Tamil Nadu Board of Secondary Education Question Bank Solutions

[(−3) + (−12)] + (−77) = ______ + [(−12) + (−77)]

(−42) + [ ____ + (−23)] = [ ____ + 15] + ____

The additive inverse of (−32) is (−32)

(−90) + (−30) = 60

(−125) + 25 = −100

Add the following

(−100) + (−10)

Add the following

20 + (−72)

Add the following

82 + (−75)

Add the following

−48 + (−15)

Add the following

−225 + (−63)

Thenmalar appeared for competitive exam which has negative scoring of 1 mark for each incorrect answer. In paper I she answered 25 questions incorrectly and in paper II, 13 questions incorrectly. Find the total reduction of marks

Find 5 pairs of integers that add up to 2

(−10) + (+7) = _____

(−8) + 10 + (−2) = _____

20 + (−9) + 9 = _____

What should be added to −1 to get 10?

−70 + 20 = `square` − 10

Say true or false.

The quotient of two integers having opposite sign is a negative integer

Say true or false.

The smallest negative integer is −1

Can you give 10 pairs of single digit integers whose sum is zero?