Study guides

☆☆

Q: How can adding doubles help you multiply by 2?

Write your answer...

Submit

Still have questions?

Continue Learning about Other Math

it can help you by couting by 2s

2. multiplying 2 and 2 is the same as adding 2 and 2.

The answer is "double".

1 multiplied by 5 plus 2 equals 7. This is because you are multiplying 1 into 5 and then adding 2.

ok so i need help with my homework! here is my problem 7/4 + (-1/2) PLEASE HELP

Related questions

it can help you by couting by 2s

By counting by 2s

because when you multiply by 2 you are just doubling the number being multiplied by two. example: 5x2=10 5+5=10

Because they are identical operations.

Mulitplying is really just a form of addition. Multiplying by 2 is the same as adding a number to itself (or adding doubles). For example: 4X2 is the same as 4 + 4 = 8 The X2 part of the multiplication problem means that you are adding doubles or 4 to itself. So any problem with X2 would be the same as adding doubles: 5X2 = 5 + 5 = 10 6X2 = 6 + 6 = 12 7X2 = 7 + 7 = 14 ...and so on. So if you can add doubles you already know how to multiply any number by 2.

2. multiplying 2 and 2 is the same as adding 2 and 2.

The answer is "double".

you multiply 5 by 2 which is ten or you think of adding 5 two's or adding 2 fives.

Multiplying by two is the same thing as adding the number to itsself again. 2 (4) = 4 + 4

multiply seven by 2 which is fourteen

Adding negatives? You get a negative. But if you multiply/divide 2 negatives, that's a positive.

As 5 = 10 ÷ 2: I usually multiply by 10 (by shifting the decimal point one digit to the right, adding a zero if it was originally at the end of the number) and then dividing by 2.

People also asked