What is the missing number ? 7 x 4 = __ x 7
What property is this?
7
commutative
Round to estimate the product.
78
x45
4000
Multiply.
45
x89
4005
Multiply.
934
x875
817,250
Multiply.
$3.07
x 8
$24.56
What property is this? 3 x (2 x 4) = (3 x 2) x 4
distributive
Round to estimate the product.
89
x23
1800
Multiply.
74
x13
962
Multiply.
345
x123
42,435
Multiply.
$4.97
x 9
$44.73
What property is this? 5 x 1 = 5
identity
Round to estimate the product.
875
x43
36,000
Multiply.
99
x78
7,722
Multiply.
426
x142
60,492
Multiply.
$21.34
x 17
$362.78
What property is this? 5 x (9 x 2) = (5 x 9) x 2
Associative
Round to estimate the product.
539
x95
40,000
Multiply
94
x87
8,178
Multiply.
568
x934
530,512
Multiply.
$67.98
x 28
$1,903.44
What are the five properties of multiplication?
associative, identity, commutative, zero, and distributive
Round to estimate the product.
4987
x678
3,500,000
Multiply.
67
x10
670
Multiply.
999
x843
842,157
Multiply.
$76.94
x 375
$28,852.50