Show:
Addition
Subtraction (using any strategy)
Subtraction (across zeroes)
Rounding
Multiply by 9
100

What is 456 + 231

687

100

334 - 212 

122

100

200 - 130 

70 

100

What is 53 rounded to the nearest ten?

50 

100

What is 9 x 3

27

200

What 328 + 459 

787

200

456 - 248 

208

200

500 - 290 

210

200

What is 489 rounded to the nearest hundred? 

500 

200

What is 9 x 5

45

300

What is 568 + 193 

761

300

456 - 337

119

300

400 - 322 

78 

300

What is 332 rounded to the nearest hundred?

300 

300

What is 9 x 6?

54

400

What is 987 + 166 

1,153

400

652 - 364

288

400

600 - 376 

224

400

What is 1,653 rounded to the nearest thousand?

2,000

400

What is 9 x 8?

72

500

What is 1, 128 + 867

1,995

500

421 - 167 

254

500

600 - 409 

191

500

What is 1,487 rounded to the nearest thousand?

1,000

500

What is 9 x 9?

81