CBSE Class 7 Maths Arithmetic Expressions (Class 7 NCERT New) Quiz 15

1. Why does the sum remain the same after swapping the terms in an expression with two terms?

A Because of the commutative property of addition B Because of the associative property of multiplication C Because subtraction is involved D Because the numbers are always positive

2. In the expression (-2) + 10 + (-4), what is the result if you group (-2) + 10 first and then add (-4)?

A 4 B 8 C -4 D 10

3. What is the property called when grouping terms in an addition expression does not change the sum?

A Associative property of addition B Distributive property C Commutative property D Multiplicative property

4. Which property states that swapping terms in addition does not change the sum?

A Commutative property of addition B Associative property of addition C Distributive property D Negative property

5. What happens to the terms inside brackets when the brackets are preceded by a negative sign?

A The terms change their sign B The terms remain the same C The terms are multiplied by 2 D The terms are divided by 2

6. If you remove brackets preceded by a negative sign in the expression 15 – (4 + 2), what is the result?

A 9 B 11 C 17 D 7

7. Which property allows you to multiply a number with a sum or difference, resulting in the sum or difference of the multiples?

A Distributive property B Associative property C Commutative property D Negative property

8. Using the distributive property, what is the result of 2 × (3 + 5)?

A 16 B 8 C 10 D 6

9. Which of the following correctly represents the distributive property for a × (b + c)?

A a × b + a × c B a + b + c C a × b × c D a × (b + c)

10. Mallika spends ₹25 every day for lunch at school. Write the expression for the total amount she spends on lunch in a week from Monday to Friday.

A 5 × 25 B 7 × 25 C 25 + 5 D 5 + 25