Subtraction
10.05 - 4.50
5.55
6.9 + 2.8
9.7
27 rounded to the nearest ten
30
100 written as a power of 10
102
Tells you how many times the base is used as a factor
Exponent
43.90 - 7.52
36.38
9.1 + 7.21
16.31
23.825 rounded to the nearest tenth
23.8
1,000 as a power of 10
103
The answer to a multiplication problem
Product
13.9 - 3.8
10.1
$271.90 + $34.22
$306.12
725.2467 rounded to the nearest hundredth
725.25
8,000 + 500 + 20 +1 written in standard form
8,521
Numbers that have the same value are called this
Equivalent
65.18 - 12.05
53.13
3.42 + 8 + 4.6
16.02
2,245.8103 rounded to the nearest hundredth
2,245.81
102,200 written in expanded form with powers of 10
(1 X 105) + (2 X 103) + (2 X 102)
The ____ of a digit in a number depends on its place in the number.
Value
$36.40 - $21.16
$15.24
16.62 + 4 + 2.38
23
638.21592 rounded to the nearest thousandth
638.216
.326 written as a fraction
326/1000
You can replace the values in a problem with these so that it's easier to use mental math.
Compatible numbers/Friendly numbers