Year After Year
Time and Time Again
Shaping Up
Story Time!
Mental Math
100

2 decades

What is 20 years?

100

√49

What is 7?

100

I have 4 equal sides.

What is a square?

100

Farmer MacGregor has 100 feet of wire fence that he needs to enclose a square garden. Each side of his garden is this long. 

What is 25 feet?

100

Start with the number of hours in a day, ÷ 2, x 3, ÷ 4 x 5, + 4, ÷ 7.

What is 7?

200

4 centuries

What is 400 years?

200
one dozen X 3

What is 36?

200

I have 8 sides.

What is an octagon?

200

If each side of a pentagon measures 12 inches, its perimeter is this. 

What is 70 inches?

200

Start with 3 score and 15, ÷ 3, x 2, ÷ 5, x 10, ÷ 2, - 25, ÷ 5.

What is 5?

300

1 millennium 

What is 1,000 years?

300

34

What is 81?

300

I have 5 sides.

What is a pentagon?

300

If Jim and Sue cut a 25-inch ribbon into 4 equal lengths, each piece is this long.

What is 6 1/4 inches?

300

Start with the number of sides of a hexagon, x 5, + 2, ÷ 8, + 1 ÷ 5. 

What is 1?

400

4 score and 7 years

What is 87?

400

150 X 1,000

What is 150,000?

400

I have 10 sides.

What is a decagon?

400

If Hank and Drover travel 60 miles to town in 3 hours, they are traveling at this speed.

What is 20 miles per hour?

400

Start with the number of years in half a century. Add the number of inches in half a foot; then divide by the number of days in a week. What is the name of the polygon with this number of sides?

What is an octagon?

500

1 millennium, 2 centuries, 3 score, and 4 decades

What is 1,300 years?

500

1.5 X 103

What is 1,500?

500

I have 6 sides. 

What is a hexagon?

500

If Mrs. Larimore flies to an exoplanet for 2 weeks with Mrs. Bursi as her copilot and Mrs. Scrimpsher at the control tower, this is how many bags of chips it would take to feed all 3 of them if they each eat 3 bags a day. 

What is 126?

500

Start with a score. Add a dozen; then add the number of feet in a yard. Divide by half the number of years in a decade; then subtract the number of days in a week. 

What is 0?