Powers of 10
5 X 103
5000
What is this number in word form?
564,123
Five hundred sixty-four thousand, one hundred twenty-three
What property is being shown below.
12 x 7 = 7 x 12
Commutative property of Addition
Use mental math to complete the pattern.
8 × 3 = ___
(8 × 3) × 101 = ____
(8 × 3) × 102 = ____
(8 × 3) × 103 = ____
24
240
2,400
24,000
(5 X 4) X 104
200,000
Write the following number in expanded form
2,565
Possible answers:
(2 X 1000) + (5 X 100) + (6 X 10) + (5 X 1)
(2 X 103) + (5 X 102) + (6 X 101) + (5 X 100)
2000 + 500 + 60 + 5
52 + ( 4 + 12) = (12 + ___ ) + 4
52
Multiply 40 and 80 using mental math strategies.
3,200
1800
Compare the sixes in the following number:
6,546
The six in the thousands place is 1000 times greater than the 6 in the ones place.
The six in the ones place is 1/1000 of the six in the thousands place
What properties are being shown below and what is the final answer?
(4+23)+16 = (4+16)+23
Associative Property of Addition
Use a basic fact and patterns to solve.
300x60 =
18,000
How would I write 1000 as a power of ten?
103
What is the value of the 5 in the number
6,521
500
What is the missing factor in the equation?
4 x 3 x 5 = 5 x ___ x 3
4
The average person loses about 8 × 101 strands of hair each day. About how many strands of hair would the average person lose in 7 days?
560 strands
How many zeroes would be in the product of:
(5X6) X 104
5
What is the value of the underlined digit?
12,456,895
Which property is being shown below?
14 x 9 = (9x10) + (9x4)
Distributive Property
Ms. Davies studies a tarantula that is 20 millimeters long. Suppose she uses a microscope to magnify the spider by 4 × 102. How long will the spider appear to be?
8,000 millimeters