Addition
Rounding
Subtraction
Vocabulary
Multiplication
100

134 + 121

255

100

18 rounded to the nearest tens place

20

100

195 - 42 

153

100

The answer to an addition problem

Sum

100

8 x 6

48

200

437 + 242

679

200

143 rounded to the nearest tens place

140

200

367 - 143

224

200

The number you divide by is called the...

Divisor

200

10 x 7

70

300

284 + 153

437

300

287 rounded to the nearest hundred 

300

300

245 - 127

118

300

The answer to a multiplication problem

Product

300

4 x 9

36

400

There are 187 people at the park, a bus drops off 89 more people. How many people are at the park?

276 people

400

449 rounded to the nearest hundred 

400

400

426 - 289

137

400

The answer to a subtraction problem is

Difference

400

3 x 7

21

500

389 + 276 

665

500

750 rounded to the nearest hundred

800


500

500 - 289

211
500

An educated guess for an answer

Estimate

500

5 x 8

40

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