Addition
Subtraction
Rounding to the nearest 10
Rounding to the nearest 100
Word Problems
100

87+14

101

100

89-45

44

100

23

20

100
141

100

100

Miss Kopfmann has 25 students in her class. Six students are absent. How many students does she have?

25-6=19

200

125+25

150

200

120-40

80

200

56

60

200

298

300

200

There are 25 students in Mr. Strand's class, 24 students in Mrs. Peterson's class and 26 students in Mrs. Luce's class. How many students are there in all?

25+24+26=75 students

300

368+495

863

300

371-145

226

300

87

90

300

89

100

400

1,254+5,933

7,187

400

900-632

268

400

134

130

400

712

700

400

Jamie has 256 pokemon cards. She wants to get a total of 300 pokemon cards. How many more does she need?

300-256=44 pokemon cards

500

10,446+2,721

13,167

500

5,000-1,589

3,411

500

478

480

500

1,498

1,500

500

Jerry has 14 marble, Josh has 56 marble and Janice has 23 marble. About how many marble do they have all together. Round to the nearest 10.

10+60+20=90 marbles

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