Rounding
Addition
Subtraction
2-Step Equation
Mystery
100

Which equations show a reasonable estimate with the answer 380?

A.129 + 248

B. 159 + 257

C. 652 − 236

D. 687 − 309

B and C

100

What is the unknown number in this equation?

9+_=9

0
100

912-785

127

100

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100

How much wood would a woodchuch chuck if a woodchuck could chuck wood?

A. 100 Pounds

B. 300 Pounds

C. 700 Pounds

D. 900 Pounds

C. 700 Pounds

200

Dale glued 136 tiles onto a table. To the nearest ten, how many tiles did Dale use?

140

200

What has the same value as (35 + 25) + 12?

__ +(25+12)

35

200

Find the difference. 786 – 213

573

200

James has 68 movies. He gives 12 movies to his brother. James puts the rest of the movies in 8 equal rows. How many movies are in each row?

7 movies

200

What has to be broken before you can use it?

An Egg

300

What is 562 rounded to the nearest hundred and the nearest ten?

600 and 560

300

615 + 55 + 296

966

300

354 – 176

178

300

Austin has 4 packs of toy cars. He gets 9 more toy cars from his brother. Now he has 33 cars. How many toy cars are in each pack?

6 toy cars in each pack

300

What has a head, a tail, but no body?

A Coin

400

Which of these is another way to add 408 + 332?

A:400 + 330

B:400 + 340

C:410 + 300
D:410 + 310

B: 400+340

400

609 + 296

905

400

807 – 425

382

400

Allie buys 9 rolls of tickets at the fair. She uses 46 tickets for rides and has 26 tickets left. How many tickets were in each roll to start?

8

400

What is Ms. Bella's favorite number?

A. 3

B. 13

C. 15

D. 7

B

500

Gabby has 385 craft sticks. She uses 167 to make a dollhouse and 42 to make a doll bed. About how many craft sticks does Gabby have left? Round to the nearest 100 when subtracting

400-200=200

500

428 + 495

923

500

Ty uses friendly numbers to subtract. How should he adjust the difference?

758 − 249 = 758 − 250 + ____

1

500

The third graders have 350 pens and pencils in the school store. They sell 57 pencils and 37 pens. How many pens and pencils are left in the store?

256 pens and pencils

500

37x12

444