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Mental Math
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Subtract multi-digit numbers
100

45+63= ?

108

100
Round to the nearest hundredths and solve:

348 - 279= ?

0

100

29 + 13 = ?

42

100

17 - 6 = ?

11

100

193,037 - 6,293 = ?

186,744

200

243+64= ?

307

200

Round to the nearest thousandths and solve:

7,985 + 5,214= ?

3,000

200

67 + 73 = ?

140

200

82 - 45 = ?

37

200

4,653 - 3,790 = ?

863

300

654+789= ?

1,443

300

Round to the nearest ten thousandths and solve: 

63,962 - 45,725= ?

10,000

300

730 + 70 = ?

800

300

294 - 282 = ?

12

300

629,392 - 725 = ?

628,667

400

3169+248= ?

3417

400

Round to the nearest hundred thousands and solve: 

582,963 + 734,189= ?

1,300,000

400

6,421 + 3,689 = ?

10,110

400

9,488 - 2,740 = ?

6,748

400

3,749,265 - 720,572 = ?

3,028,693

500

1,060,529 + 440,781 + 6= ?

1,501,316

500

Round to the nearest ten thousand and solve:

295,836 - 247,820= ?

48,016

500

8,632 + 7,942 = ?

16,574

500

287,829 - 6,380 = ?

281,449

500

829,496 - ? = 12,749

816,747