Math RULES!
Question 1a
90
130
Question 1c
3,136
Use doubling and halving to rewrite the equation and solve: 5 x 16 =
10 x 8 = 80
If 10 x 15 = 150, what is 5 x 15?
75
Question 7a
4 x 3 x 7 = 84 cubes
Question 7 b
2 x 6 x 5 = 60 cubes
Question 6 a
(10 x 32) + (5 x 32) = 320 + 160 = 480
Use doubling and halving to rewrite the equation and solve: 5 x 14 =
10 x 7 = 70
If 10 x 25 = 250, what is 5 x 25?
125
Question 8
24 x 9 = 216 balls
Question 9 a
57 ÷ 4 = 14 1/4
Question 9 b
57 ÷ 4 = 14 R 1
15 cars
Use doubling and halving to rewrite the equation and solve: 12 x 15 =
6 x 30 = 180
If 10 x 36 = 360, what is 5 x 36?
180
Question 9 c
57.00 ÷ 4 = $14.25
Use doubling and halving to rewrite the equation and solve: 18 x 2 =
9 x 4 =
If 10 x 18 = 180, what is 5 x 18?
90
Use doubling and halving to rewrite the equation and solve: 50 x 16 =
100 x 8 =
If 10 x 50 = , what is 5 x 50?
250