Addition
0.95 + 5.09
6.04
16.68 - 5.23
11.45
8 x 6.5
52
13.8 div 3 =
4.6
For which 2 operations (addition, subtraction, multiplication, division) do you need to line up the decimal points?
Addition and Subtraction
Round 7.59 to the nearest whole number.
8
12.1 x 100
1,210
11.27 + 9.4
20.67
67.75 - 9.6
58.15
4.2 x 1.8
7.56
33.6 div 5 =
6.72
For which operations (addition, subtraction, multiplication, division) do you need to count the numbers after the decimal points to determine where the decimal should go?
Multiplication
Round 0.624 to the nearest hundredth.
0.62
9,563 x 10 =
95,630
74.83 + 132.05
206.88
43.03 - 16.9
26.13
0.07 x 0.4
0.028
15.6 div 0.5 =
31.2
What place value is the 4, in the decimal 122.342?
Hundredths
Round 0.7255 to the nearest thousandth.
0.726
9,563 div 100
95.63
123.71 + 8.421
132.131
12 - 4.61
7.39
3.7 x 78.8
291.56
132.42 div 2.4
55.175
Which operation (addition, subtraction, multiplication or division) should you line up the numbers and not the decimals?
Multiplication
Round 3.299 to the nearest hundredth.
3.30 or 3.3
0.321 div 100
0.00321
627.94 + 134.5544
762.4944
73.4 - 15.7213
57.6787
0.293 x 6.7
1.9631
2.0 div 11
0.18... (repeating)
If your divisor has a decimal, what must you do to make the problem "long division friendly" (aka what must you do before you start dividing?)
In the divisor, you must move the decimal over until there is no decimal. And then move the decimal over the same amount of spots in the dividend.
Round 0.995 to the nearest Thousandth.
1.000 or 1
59.8 x 100,000 =
5,980,000