Decimals
What is the rule for adding and subtracting decimals?
line up the decimals.
find the LCM of 5 and 15
15
Which statement shows correct reasoning for finding 12 divided 3/8?
A. Multiply 12 by 8, then divide by 3.
B. Multiply 12 by 3, then divide by 8.
C. Multiply 3 by 8, then divide by 12.
D. Multiply 12 by , then multiply by 3.
A
0.58-0.23
0.35
79.65 ÷ 2.7
29.5
When dividing decimals do you not want a decimal on the outside or inside?
outside
find the GCF of 28 and 32
4
10/3 divided by 2/6
60/6 or 10
1- 0.5904
0.4096
51.52 ÷1.6
32.2
Which digit is in the thousandths spot? 17.324
4
Find the GCF of 15 and 45
15
3/4 divided by 1/5
15/4 or 3 3/4
0.25+ 0.542
0.792
13.96 ÷ 0.4
34.9
How would you say this decimal mathematically?
43.532
forty-three and five hundred thirty-two thousandths
find the LCM of 2 and 7
14
9/2 divided by 3/4
6
18.45 + 5.234
23.684
96.2 ÷ 2.6
37
What are the steps for multiplying decimals?
multiply like normal
count the digits to the right of the decimals and move decimals to the left.
find the GCF of 4 and 18
2
4/6 or 2/3
0.991-0.43
0.561
84 ÷ 3.5
24