Add/Subtract
Add Whole Numbers
Subtract Whole Numbers
Subtract Across Zeros
Measures of Center
100

Add these two numbers

5,317 + 1,734

7,051

100

14,312 + 9,617

23,929

100

9,128 - 3,753

5,375

100

8,000 - 6,280

1,720

100

Find the mean of the following:

99, 88, 97, 107, 100, 109.

100

200

Subtract these two numbers

8,932 - 3,741

5,191

200

In May, 8,723 cans were recycled. In June, 6,419 cans were recycled. What is the total number of cans recycled?

15,142 cans

200

76,237 - 4,657

71,580

200

1,902 - 1,374

528

200

Rachel kept track of how much she spent on groceries each week for four weeks.  What is the mean amount she spent on groceries?

                $201, $281, $333, $109

 $231

300

Add these three numbers

673 + 285 + 50

1,008

300

67,435 + 2,409

69,844

300

67,407 - 38,227

29,180

300

6,502 - 5,380

1,122

300

The car dealership kept track of how many cars they sold for 6 weeks.  What is the mean amount of cars that they sold each week?

            75, 88, 34, 88, 64 101

75 cars

400

Subtract these two numbers

542,817 - 27,398

515,419

400

12,395 + 14,609

27,004

400

Mount Steele is 5,029 meters tall. Mount Whitney is 4,421 meters tall. How much taller is Mount Steele than Mount Whitney?

608 meters

400

63,000 - 48,673

14,327

400

The car dealership kept track of the cars they sold for six weeks?  What is the mode?

75, 88, 34, 88, 64, 101

88 cars

500

Round each numbers to the hundreds place, then add

385 + 215 + 752 

400 + 200 + 800= 1,400

500

3,825 + 1,297 + 4,175

9,297

500

Tom earned 134,867 points playing a video game, and Carlos earned 29,589 points. How many more points did Tom earn than Carlos?

105,278 points

500

30,900 - 22,855

8,045

500

Annabell's mom wanted her to watch less TV, so she timed how man minutes she watched TV each day for a week.  What is the mean time that she watched TV each day?


39 minutes

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