Multiplying Decimals
0.6 x (-4.5) =
-2.7
3/4 x (-2/5) =
-3/10
4 x (-7) =
-28
5 / (-0.1) =
-50
(2/3) / (5/6) =
4/5
1.2 x (-0.2) =
-0.24
(-2/3) x (-1/5) =
2/15
Which of the following is incorrect?
A. (-6) x (-4) = 24
B. (-3) x (-3) = -9
C. (-5) x (-1) = 5
D. (-2) x (-7) = 14
B. (-3) x (-3) = -9
DOUBLES = POSITIVE
1.44 / 0.12 =
12
6 / (-1/3)
3.2 x (-0.8) =
2.56
(-1/3) x (-1/4) =
1/12
(-3) x (-5) =
15
(-3.2) / (-8) =
0.4
(-3/4) / (2/3) =
-9/8
(-0.8) x (-1.5) =
1.2
Natalie made pies for a family gathering to eat for dessert. The recipe calls for 2/3 cup of graham cracker crumbs for the crust of 1 pie. If she needs to make 4 pies, how many cups of graham cracker crumbs does she need?
8/3 OR 2 2/3 cups
-30 / -10 =
3
-0.56 / 0.08 =
-7
(2/3) / (1/5) =
10/3 OR 3 1/3
Jimmy went to the store to buy some candy. If he purchases 5 pieces of chocolate that cost $0.45 each, how much money does he need?
$2.25
1/2 x -4 x 3 =
-6
-24 / 4 =
-6
4.8 / -1.2 =
-4
(-1/5) / (-6/9) =
3/10