IXL | Addition up to four digits: fill in the missing digits | 3rd grade math

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Type the missing digits:

	4	,	4	8	9
+	3	,	8
	8	,	3	8	5

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Learn with an example

question

Type the missing digits:

	2	,	6	3	0
+	7	,		5	8
		,	7	8	8

solution

Start on the right. Add the ones and tens columns. Look at the hundreds column. The hundreds column must add up to 7 or 17. The missing number is 1.


	2	,	6	3	0

+	7	,	1	5	8

	?	,	7	8	8

Look at the thousands column. Add the thousands. The missing number is 9.


	2	,	6	3	0

+	7	,	1	5	8

	9	,	7	8	8

Looking for more? Try these:

Lesson: Multi-digit addition

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Work it out

Not feeling ready yet? These can help:

I.4Complete the addition sentence: up to four digits

Lesson: Multi-digit addition