Decimal Rule
How do you add decimals?
You line up the decimals and then add the numbers, then bring the decimal down into the answer.
58.9 + 3.04 =
61.94
How many yards in 18 feet?
6
.6 x 2.1 =
1.26
.25 divided by .05 =
5
How do you subtract decimals?
You line up the decimals and then subtract the numbers. Bring the decimal down. The larger number goes on top.
3.95 - 2.7 =
1.25
How many tons in 5,000 pounds?
What do you do if there are not enough digits in the top number to subtract a problem?
You have to add on zero's.
.9843 + 2.67 =
3.6543
How many feet in 2 miles?
10, 560
How do you multiply decimals?
You multiply the numbers (as if they are whole numbers) and then you count how many spaces there are to the right of the decimals. Count over that many places to the left in the answer.
125 - .68 =
124.32
How many pints in 13 cups?
6 1/2
.848 divided by 8 =
.106
How do you divide decimals?
You have to get rid of the decimals in the divisor (on the outside) by moving the decimals on the inside the same number of places. Then bring the decimal point straight up and divide normally.
8.07 + .0976=
8.1676
How many fluid ounces in 3 cups?
24
.312 x 1.67 =
.52104