# If Bob had 7 apples and Sally took 3, now many are left?

##### 2 Answers

Jul 20, 2016

#### Explanation:

Use simple subtraction. Imagine seven apples are in front of you:

o o o o o o o

Then pretend three disappeared.

o o o o

#cancel("o o o")#

Now count the remaining apples. There are four left over.

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Or you could write this out as a math problem:

#7-3=x#

Do the math using a calculator or write it out.

#7-3 = 4#

Jul 22, 2016

Another way of calculating the answer. It is really the same as the other methods. It just looks different.

#### Explanation:

Known:

Substitute for 7 giving:

So for