Adding Fractions
Subtracting Fractions
Powers of 10
Word Problems
Old Math
100

1/4 + 2/4 = ?

3/4

100

4/5 - 2/5 = ?

2/5

100

10^3

1,000

100

Andre ran 4/5 of a 7 mile trail. Did he run more or less than 7 miles? Why?

Less. 4/5 is less than one!

100

45 X 0.1 = ?

4.5

200

2/10 + 7/10 = ?

9/10

200

16/20 - 7/20 = ?

9/20

200

10,000

10^4

200

Clare ran ?/10 of a 7-mile trail. She ran a distance greater than 7 miles. What could the missing numerator be to make the statement true?

ANYTHING higher than 10

200

45 divided by 0.1 = ?

450

300

1/8 + 1/2 = ?

5/8

300

4/6 - 1/2 = ?

1/6

300

10 X 10 X 10 X 10 X 10

10^5 or 100,000

300

Explain why multiplying a fraction by a number less than 1 makes the fraction smaller.

Multiplying a fraction by a number less than 1 is the same as taking a part of that fraction, resulting in a smaller value.

300

L = 12, W = 3, H = 4. What is the volume?

144 cubic units

400

2/3 + 1/7 = ?

17/21

400

3/5 - 2/9 = ?

17/45

400

3 X 10^6

3,000,000

400

About 10^6 people live in Michigan, about 10^4 people live in in Flint. How many times as many people live in Michigan as in Flint?

10^2 or 100

400

Length = 2, Width = 7, Volume = 56 cubic units. What is the Height?

4

500

2  1/2  +  3  3/4 = ?

6  1/4

500

3  1/5  -  1  3/10 = ?

1  9/10

500

10^3 X (11 - 4)

7,000

500

There are about 10^11 stars in the Milky Way Galaxy. There are about 10^24 stars in the universe. How many times as many stars are there in the universe than in the Milky Way?

10^13 or 10,000,000,000,000 (10 trillion)

500

What is the length measuring around a rectangle called?

Perimiter