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How to Multiply by 1000


As 1000 = 10 10 10, multiplying by 1000 is the same as multiplying by 10 three times. That means you have to move the point three places to the right.

Rule

When you multiply a number by 1000, you move the point in the number three places to the right.

Bootcamps

Want to watch animated videos and solve interactive exercises about multiplication by powers of ten? Click here to try Bootcamps!

If the number you want to multiply by 1000 isn’t a decimal number, remember that there’s always an invisible point behind the last digit in the number. By moving that point three places to the right, you get three empty places, and in each of those you put a 0.

4 times 1000 equals 4000 shown as a leap on the number line

The trick of moving the decimal point when multiplying by 10, is similar to a trick you can use when dividing by 1000.

Example 1

Multiplying by 1000

a)
61 1000 = 61000
b)
763.4 1000 = 763400
c)
20 1000 = 20000
d)
0.4 1000 = 400
e)
65 1000 = 65000
f)
36.98 1000 = 36980
g)
71 1000 = 71000
h)
0.04 1000 = 40

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