1. =
2 . 2x1. 1 .
= =
4 2x2 2
common denominator
1 . 2 . 5 . 4 . 9 .
2
+ 5 = 10
+ 10
= 10
5, 10, 15
10 is the common
2, 4, 6, 8, 10, 12
denominator of 2 and 5

2. greatest common factor
Factors of 12 – 1, 2, 3, 4, 6, 12
Factors of 18 – 1, 2, 3, 6, 9, 18
GCF is 6
least common multiple
Multiples of 12 – 12, 24, 36, 48, 60, 72
Multiples of 18 – 18, 36, 54, 72, 90, 108
LCM is 36

3. NO!
Symbol for percent
25 out of 100

4. 15 d 6 d 16 d 3 d 9 d
6 3 5 2 12
NO!

5. 6 is divisible
by 3 but
NOT by 5.
Multiples of 12 – 12, 24, 36, 48, 60, 72
Multiples of 18 – 18, 36, 54, 72, 90, 108

6. To find the product, I need to multiply factors.
2x3=6 15 = 5 x 3
Estimate the product. It’s about 10 x 20
or 200.
12 x 18

7. 3
in
3
6m ft
144 m3 3
Three dimensional size of an yd
6m
4m
object – how much space a cm3
container occupies m3

8. irregular polygon

9. cups, pints, lung
gallons capacity
room Amount of pourable substance a milliliters,
capacity container can (or does) hold. liters
the distance around a circle

10. ≈ 3.14 22 .
7

11. circle graph
8 ozs.
1 c

12. 2 cups
tall glass of
lemonade 1 pt.
2 pints
1 qt.

13. 4 quarts
1 gal.
1 .of a pint about 30 ml
16 1 . of a cup
8

14. a little more than a quart
1 L
quart
3
1 cm
about 20 drops
1 ml
1
of water about of a teaspoon
5

15. 3
1 cm
a sugar
cube
11 boxes
3
1m
The trailer is
18 in. x 18in. x 17 in. about 100 m3.

16. 3
231 in
3
1 in
about 7 ½ gallons
3
1 ft. 1 ft
1 ft.
1 ft.

17. The amount of mulch
needed to fill a
garden 10 ft. long
3
1 yd
by 10 feet wide by
3 inches deep