Secondary School (English Medium) (5 to 8) कक्षा ७ - CBSE Question Bank Solutions for Mathematics

If a and b are two integers, then which of the following may not be an integer?

______ ÷ (–10) = 0

When we divide a negative integer by a positive integer, we divide them as whole numbers and put a ______ sign before quotient.

Division is the inverse operation of ______.

65 ÷ (–13) = ______.

(–100) ÷ (–10) = ______.

(–225) ÷ 5 = ______.

a ÷ (–b) = –(a ÷ b)

Multiplication fact (–8) × (–10) = 80 is same as division fact 80 ÷ (–8) = (–10)

369 ÷ _____ = 369

(–75) ÷ _____ = –1

(–206) ÷ _____ = 1

– 87 ÷ _____ = 87

_____ ÷ 1 = – 87

______ ÷ 48 = –1

Write five pairs of integers (a, b) such a ÷ b = −3. One such pair is (6, −2) because 6 ÷ (−2) = (−3).

The temperature at 12 noon was 10°C above zero. If it decreases at the rate of 2°C per hour until midnight, at what time would the temperature be 8°C below zero? What would be the temperature at midnight?

In a class test (+3) marks are given for every correct answer and (–2) marks are given for every incorrect answer and no marks for not attempting any question. Radhika scored 20 marks. If she has got 12 correct answers, how many questions has she attempted incorrectly? 

An elevator descends into a mine shaft at the rate of 6 m/min. If the descent starts from 10 m above the ground level, how long will it take to reach −350 m?

Which of the following does not represent an integer?