Math Review

Key Words

100

What word is the answer to an addition problem?

Sum

200

What are words or phrases in a word problem that will let you know that you need to subtract?

How many more

Difference

How much more

300

When you see this word, that means that your answer will be the closest to a specific number, but not exact.

Estimate

400

The answer to a multiplication problem

Product

500

The answer to a division problem

quotient

Word Problems

100

A store sold 127 apples on Monday and 93 apples on Tuesday. How many apples did the store sell in total?

220

200

Maria had $200. She spent $67 on clothes. How much money does Maria have left?

$133

300

If one ticket to a movie costs $9 and 6 friends each buy a ticket, how much do they spend in total?

$54

400

At a soccer camp, there are 12 teams. Each team has 11 players. How many players are at the camp?

132 players

500

1. A baker made 156 cupcakes in the morning and gave 49 of them away to a nearby school. How many cupcakes does the baker have left?

107

Rounding

100

What is 5 rounded to the nearest 10's place?

10

200

What is 43 rounded to the nearest 10s place?

40

300

1. If you round 15,678 to the nearest thousand, what is the answer?

   • a) 16,000
   • b) 15,000
   • c) 15,680
   • d) 15,700

a.

400

When rounding 8,149 to the nearest hundred, what do you get?

8,100

500

Round 7,856 to the nearest 10s place

7,860

Estimations

100

What is the best estimate of 9+8

20

200

What is the best estimate of 7 X 5?

40

300

What is the best estimate for 398 + 205?

600

400

1. What is the best strategy to estimate 3,210−1,998?

   • a) Subtract 3,200−2,000
   • b) Subtract 3,000−2,000
   • c) Subtract 3,210−2,000
   • d) Subtract 3,000−1,900

a.

500

You want to estimate the cost of 5 pizzas at $8.75 each. What is a reasonable estimate?

$45