CBSE Class 7 Mathematics Arithmetic Expressions MCQs Set 09

Question. The number of boy scouts marching is 4 rows of 5. The number of girl guides is 3 rows of 5. The total people expression is 4 × 5 + 3 × 5. This expression is equal to:
(a) (4 + 3) × 5
(b) 4 × (5 + 3)
(c) 4 + 3 + 5
(d) 4 × 5 × 3

Answer: A

Question. The value of the total number of scouts and guides, calculated as 4 × 5 + 3 × 5, is:
(a) 20
(b) 15
(c) 35
(d) 40

Answer: C

Question. Why is 5 × 4 + 3 not equal to 5 × (4 + 3)?
(a) Because multiplication and addition are different operations
(b) Because the brackets change the order of operations
(c) Because 4 + 3 is smaller than 4 × 3
(d) Because 5 is a prime number

Answer: B

Question. The expression 10 × 98 + 3 × 98 means 10 times 98 added to 3 times 98. This is the same as having 98 how many times?
(a) 30 times
(b) 13 times
(c) 7 times
(d) 10 times

Answer: B

Question. We can write 10 × 98 + 3 × 98 as (10 + 3) × 98. This shows that the multiple of a sum is the same as the sum of the:
(a) Differences
(b) Products
(c) Multiples
(d) Quotients

Answer: C

Question. Fill in the blank to make the expressions equal: 3 × (6 + 7) = 3 × 6 + 3 × _____.
(a) 6
(b) 7
(c) 13
(d) 3

Answer: B

Question. Fill in the blank: 5 × (9 - 2) = 5 × 9 - 5 × _____.
(a) 9
(b) 7
(c) 2
(d) 5

Answer: C

Question. Fill in the blank: (5 - 2) × 7 = 5 × 7 - 2 × _____.
(a) 5
(b) 2
(c) 7
(d) 3

Answer: C

Question. Which sign is needed: (8 - 3) × 29 _____ (3 - 8) × 29?
(a) =
(b) >
(c) <
(d) +

Answer: B

Question. Which sign is needed: 15 + 9 × 18 _____ (15 + 9) × 18?
(a) >
(b) <
(c) =
(d) ÷

Answer: B

Question. Which sign is needed: 23 × (17 - 9) _____ 23 × 17 + 23 × 9?
(a) >
(b) <
(c) =
(d) +

Answer: B

Question. Rahim (9 kg daily) and Shyam (11 kg daily) supply mangoes for 7 days (a week). The expression for total mangoes supplied in a week is:
(a) 9 × 7 + 11
(b) (9 + 11) × 7
(c) 9 + 11 + 7
(d) 9 × 11 × 7

Answer: B

Question. Binu earns ₹20,000 and spends ₹12,000 monthly. Monthly saving is ₹8,000. To find the savings after one year (12 months), the expression is:
(a) 20000 – 12000
(b) 12 × (20000 – 12000)
(c) 12 × 20000 – 12000
(d) 20000 + 12000

Answer: B

Question. A snail climbs 3 cm up and slips 2 cm down daily. What is the net distance covered by the snail each day?
(a) 5 cm
(b) 1 cm
(c) 2 cm
(d) 3 cm

Answer: B

Question. Melvin reads a two-page story every day, except on Tuesdays and Saturdays. How many reading days are there in a week?
(a) 7 days
(b) 5 days
(c) 2 days
(d) 8 days

Answer: B

Question. Melvin reads 2 pages a day for 5 days a week. How many stories will he complete in 8 weeks? Which expression describes this scenario?
(a) (7 – 2) × 8
(b) 5 × 2 × 8
(c) 7 × 2 × 8
(d) (7 – 5) × 8

Answer: B

Question. Which expression is equal to 1 - 1 + 1 - 1 + 1 - 1 + 1 - 1 + 1 - 1?
(a) 1
(b) 10
(c) 0
(d) –1

Answer: C

Question. Compare 83 × 42 - 18 and 83 × 40 - 18. We see the first expression has an extra multiplication of 83 × 2, so the first expression is:
(a) Equal to the second
(b) Greater than the second
(c) Less than the second
(d) Cannot compare

Answer: B

Question. Compare 145 - 17 × 8 and 145 - 17 × 6. Since 17 × 8 is subtracted in the first, and 17 × 6 is subtracted in the second, the second expression is:
(a) Greater
(b) Smaller
(c) Equal
(d) Cannot tell

Answer: A

Question. Compare 23 × 48 - 35 and 23 × (48 - 35). The correct sign is:
(a) =
(b) >
(c) <
(d) +

Answer: B