2x1 multiplication
2x2 multiplication
Rounding
estimate and multiply
Random!
100

 24

x 7

168

100

   36

x 21

756

100

Round 354 to the nearest hundred.   

400

100

372

x 4

Round 372 to 400

                     x 4

                   1,600

100

7392

x    4


29,568

200
 72

x 6

432

200
   68

x 36

2,448

200

Round 4,642 to the nearest thousand. 

5,000

200

521

x  5

round 521 to 500. 

500

x 5

2500

200

Round 45, 698 to the nearest hundred. 

45, 700

300

 84

x 3

252

300
   24

x 18

432

300

Round 53,283 to the nearest ten thousand. 

50,000

300

632

x  3

round 632 to 600. 

600

x  3

1,800

300

What is 77, 459 in expanded form? 

70,000 + 7,000 + 400 + 50 + 9

400

 92

x 7

644

400

   79

x 63

4,977

400

Round 438 to the nearest hundred. 

400

400

8,341

x    4

round 8,341 to 8,000. 

8,000

x    4

32,000

400

43 x 16

688

500

 58

x 5

290

500

   47

x 53

2,491

500

Round 798,458 to the nearest ten thousand. 

790,000

500

7642

x   6

round 7642 to 8,000. 

8,000

x    6

48,000

500

65 x 82

5,330

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