P2_BookC_WordProblems

A bakery sold 399 buns in the morning and 178 buns in the afternoon. 78 buns are left in the bakery. Which expression below gives the original number of buns in the bakery?

• 399 + 178 − 78

• 399 − 178 + 78

• 399 + 178 + 78

• 399 − 178 − 78

A Primary school had 721 students at first. 123 Primary 6 students graduated then left, and 106 Primary 1 students joined. Which expression below gives the number of students the school has now?

• 721 − 123－106

• 721 − 123 + 106

• 721 + 123 + 106

• 721 + 123 − 106

Answer explanation

left -> subtraction

joined -> addition

An electric oven is 409 dollars more expensive than a heater, but it is 272 dollars cheaper than a coffee maker machine. If the heater costs 716 dollars. Which expression below gives the cost of the coffee maker machine in dollars?

• 716 − 409 − 272

• 716 − 409 + 272

• 716 + 409 − 272

• 716 + 409 + 272

Answer explanation

$ of coffee maker > $ of electric oven > $ of heater

Steve's savings in August is $721. His savings in September is $102 more than August. However, his savings in October is $84 less than September.

Ans: Steve's savings in October is $______. (fill in the number only)

Answer explanation

$ in Spetember > $ in August ;

$ in September > $ in October

I have has 3 books. Book A has 254 pages. Book B has 68 pages more than Book A. but 126 pages fewer than Book C.

Ans: Book C has _____ pages. (fill in the number only)

Answer explanation

Book A < Book B < Book C