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1. 1. = 2 . 2x1. 1 . = = 4 2x2 2common denominator1 . 2 . 5 . 4 . 9 .2 + 5 = 10 + 10 = 10 5, 10, 15 10 is the common2, 4, 6, 8, 10, 12 denominator of 2 and 5
2. 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 multipleMultiples of 12 – 12, 24, 36, 48, 60, 72Multiples of 18 – 18, 36, 54, 72, 90, 108 LCM is 36
3. 3. NO! Symbol for percent25 out of 100
4. 4. 15 d 6 d 16 d 3 d 9 d 6 3 5 2 12 NO!
5. 5. 6 is divisible by 3 but NOT by 5.Multiples of 12 – 12, 24, 36, 48, 60, 72Multiples of 18 – 18, 36, 54, 72, 90, 108
6. 6. To find the product, I need to multiply factors. 2x3=6 15 = 5 x 3Estimate the product. It’s about 10 x 20 or 200. 12 x 18
7. 7. 3 in 3 6m ft144 m3 3 Three dimensional size of an yd6m 4m object – how much space a cm3 container occupies m3
8. 8. irregular polygon
9. 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. 10. ≈ 3.14 22 . 7
11. 11. circle graph 8 ozs. 1 c
12. 12. 2 cupstall glass of lemonade 1 pt. 2 pints 1 qt.
13. 13. 4 quarts 1 gal. 1 .of a pint about 30 ml16 1 . of a cup 8
14. 14. a little more than a quart 1 L quart 3 1 cmabout 20 drops 1 ml 1 of water about of a teaspoon 5
15. 15. 3 1 cm a sugar cube 11 boxes 3 1m The trailer is18 in. x 18in. x 17 in. about 100 m3.
16. 16. 3 231 in 3 1 in about 7 ½ gallons 3 1 ft. 1 ft1 ft. 1 ft.
17. 17. The amount of mulch needed to fill a garden 10 ft. long 31 yd by 10 feet wide by 3 inches deep