Exponents
101
10
What is the most important thing you need to do when adding and subtracting decimals?
Line them up!
write this number in expanded notation 331.6
(300 x 1) (30 x 1) (1 x 1) 6 x .1)
.45 rounded to the nearest tenth
.5
.52 is greater or less then .5
Greater then
104
10,000
34.6 + 19.5
54.1
write this number in expanded notation 54.729
(50 x 10) (4 x 1) (7 x .1) (2 x .01) (9 x .001)
3.42 rounded to the nearest tenth
3.4
4.52 is greater or less then 5.42
106
1,000,000
621.74 + 63.194
684.934
Write this number in standard for (2 x 10) (6 x 1) (8 x .1) (9 x .01)
26.89
63.5 rounded to the nearest whole number
64
(3 x 1) (6.1) (5 x .01) _________ 3.63
>
102x 10
1,000
70.35- 51.23
19.12
Write this number in standard form (1 x 1000) (6 x 100) (5 x 10) (4 x 1) (2 x .1)
1654.2
what number would .652 be rounded to?
.65 or .66
.65
103 x 10
10,000
532.86- 423.63
109.23
Write this number in expanded notation 729,424.89
(7 x 100,000) (2 x 10,000) (9 x 1000) (4 x 100) (2 x 10) (4 x 1) (8 x .1) (9 x .01)
What number would 1.649 be rounded to?
1.64 or 1.65
1.65