Rounding
Addition
Subtraction
Comparing Numbers
Multiples of 10
100

What is 68 rounded to the nearest Ten

70

100

136 + 136

272

100

34 - 29

5

100

Compare  356 and 387

356 <  387

100

30 X 7

210

200

What is 52 rounded to the nearest Ten?

50

200

84 + 84

168

200

87 - 58

29

200

Compare 844 and 834

844 > 834

200

40 x 5

200

300

What is 86 rounded to the nearest Ten?

90

300

49 + 47 

96

300

137 - 29

108

300

Put these numbers in order from greatest to least:

478,  566, 23,  477, 522

566, 522, 478, 477, 23

300

20 X 6

120

400

What is 135 rounded to the nearest hundred?

100

400

261 +  372

633

400

981 - 376

605

400

Compare 566 and 562

566 > 562

400

90 x 9

810

500

What is 589 rounded to the nearest hundred

600

500

786 + 252

1038

500

909 - 876

33

500
Compare 1345 and 1245

1345 > 1245

500

40 x 4

160