4 terms

How do you add decimals?

Step 1: Write down the numbers, one under the other, with the decimal points lined up.

Step 2: Put in zeros so the numbers have the same length.

Step 3: Then add using column addition, remembering to put the decimal point in the answer.

Step 2: Put in zeros so the numbers have the same length.

Step 3: Then add using column addition, remembering to put the decimal point in the answer.

How do you subtract decimals?

Step 1: Write down the numbers, one under the other, with the decimal points lined up.

Step 2: Put in zeros so the numbers have the same length.

Step 3: Then subtract using column subtraction, remembering to put the decimal point in the answer.

Step 2: Put in zeros so the numbers have the same length.

Step 3: Then subtract using column subtraction, remembering to put the decimal point in the answer.

How do you multiply decimals?

i.e. .7 x .03 =

i.e. .7 x .03 =

Step 1: Multiply normally, ignoring the decimal points.

Step 2: Then put the decimal point in the answer - it will have as many decimal places as the two original numbers combined.

i.e. .7 x .03 = 0.028

Step 2: Then put the decimal point in the answer - it will have as many decimal places as the two original numbers combined.

i.e. .7 x .03 = 0.028

How do you divide decimals?

i.e. 0.7 ÷ 3.5

i.e. 0.7 ÷ 3.5

Step 1: If the divisor is not a whole number, move decimal point to right to make it a whole number ( 3.5 becomes 35) and move decimal point in dividend the same number of places (0.7 becomes 7).

Step 2: Divide as usual. Keep dividing until the answer terminates or repeats.

Step 3: Put decimal point directly above decimal point in the dividend. (answer = 0.2)

Step 2: Divide as usual. Keep dividing until the answer terminates or repeats.

Step 3: Put decimal point directly above decimal point in the dividend. (answer = 0.2)