Evaluate Expressions
Multiplication Strategies
Quick Facts
Volume
Fill in the Blank
100
7 x (10 x 4)
280
100
To find 25 x 12, I double 25 and halve 12.
Write the equation: (double 25) x (halve 12)
Solve the problem:
(25 x 2) x (12 / 2) = 300
100
6 x 7 =
6 x 7 = 42
100
Find the volume of a box with the following dimensions.
5 x (2 x 18)
180 units cubed
100
8 x 4 = 16 x ___
8 x 4 = 16 x 2
200
(3 x 8) x 4
96
200
To solve 13 x 16, I double and halve.
Write the equation: (double 13) + (halve 16)
Solve.
(13 x 2) x (16 / 2) = 208
200
40 divided by 8
40 divided by 8 is 5
200
Find the volume of a box with the following dimensions.
area of the base: 24
height: 3
72 units cubed
200
____ x 7 = 16 x 14
32
300
(100 x 23) - (2 x 23)
2,254
300
To find 10 times 34, I multiply 10 times 30 and add it to 10 times 4.
Write the equation: (multiply 10 times 30) + (10 times 4)
Solve.
(10 x 30) + (10 x 4) = 340
300
8 x 3 =
8 x 3 = 24
300
Write an equation for the volume of a box with the following dimensions.
length: 4
width: 6
height: 12
(4 x 6) x 12 = 288 units cubed
300
____ x 5 = 13 x 10
26 x 5 = 13 x 10
400
(50 x 78) - (1 x 78)
312
400
To find 11 times 26, I multiply 10 times 26 and add it to 1 x 26.
Write the equation: (multiply 10 times 26) + (1 x 26)
Solve.
(10 x 26) + (1 x 26) = 286
400
6 x 8 =
6 x 8 = 48
400
Write an equation that shows the volume of the rectangular prism.
(4 x 3) x 5 = 60 units cubed
400
35 x 99 = (____ x 35) - (1 x 35)
35 x 99 = (100 x 35) - (1 x 35)
500
3 x (2 x 3) + 2 x (3 x 3) + 3 x (3 x 2)
54
500
To find 43 times 9, I multiply 43 times 10 and remove 1 group of 43.
Write the equation: (Multiply 43 times 10) - (1 group of 43)
Solve the problem:
(43 x 10) - (43 x 1) = 387
500
63 divided by 9
63 divided by 9 is 7
500
Write an equation that shows the volume of the figure AND solve.
(4 x 5) x 10 = 200 units cubed
500
98 x 56 = (___ x 56) - (2 x 56)
98 x 56 = (100 x 56) - (2 x 56)