Add, Subtract, Multiply, and Divide
Mental Computation
Fractions, Decimals, Percentages
Mean, Median, Mode
Estimating
100

5,837+3,629=?

What is 9,466?

100

647+203=?

What is 850?

100

Turn 3/4 into a decimal

What is .75?

100

Find the mode: 76, 87, 45, 76, 23, 45, 87, and 76.

What is 76?

100

Estimate: 343+172

What is approximately 500?

200

987-43=?

What is 944?

200

100x63=?

What is 6,300?

200

Turn 98/100 into a percentage

What is 98%?

200

Find the mean: 98, 87, 42, 63, and 75

What is 73?

200

Estimate: 29.92-9.75

What is approximately 20?

300

396/3=?

What is 132?

300

10x5.75=?

What is 57.5?

300

Turn .047 into a percentage

What is 4.7%?

300

Find the median: 12, 97, 36, 62, 47, 53 and 84

What is 47?

300

Estimate: 6381/17

What is approximately 300?

400

8.7x6=?

What is 52.2?

400

967/100=?

What is 9.67?

400

Turn 57% into a decimal

What is .57?

400

Find the mean: 14, 26, 86, 39, 64, 42 and 51

What is 46?

400

Estimate: 983x58

What is approximately 60,000?

500

12.36/6=?

What is 2.06?

500

87,075/1,000=?

What is 87.075?

500

Turn 3/5 into a percentage

What is 60%?

500

Find the median: 88, 24, 67, 32, 71, and 59

What is 63?

500

Estimate: 875x96

What is approximately 90,000?