IXL | Subtraction facts - up to 20 | 1st grade math

or

Subtract.

10

–

1

=

ref_doc_title.

or

Learn with an example

question

Subtract.

16

–

7

=

solution

You can count back to find

16

–

7

.

Start at 16 and count back 7 times.

6

7

8

9

10

11

12

13

14

15

16

You end at 9.

16

–

7

=

9

You can also use 10 to find

16

–

7

.

Start at 16. Subtract 6 to get to 10. Then subtract 1 more. That way, you subtract 7 in all.

6

7

8

9

-

1

10

11

12

13

-

6

14

15

16

You end at 9.

16

–

7

=

9

Looking for more? Try this:

or

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Teacher tools

Work it out

Not feeling ready yet? These can help:

S.4Subtract by counting back - up to 20

S.9Subtract by counting on - up to 20

T.1Subtracting 1

T.2Subtracting 2

T.3Subtracting 3

T.4Subtracting 4

T.5Subtracting 5

T.6Subtracting 6

T.7Subtracting 7

T.8Subtracting 8

T.9Subtracting 9

T.11Subtracting 0