Missing addends - mental math worksheets

Missing addends (mental math)

Find the missing numbers in your head

These worksheets provide addition sentences with two addends; students try to calculate the sum or the missing addend in their heads. Good mental math practice.

$Grade 4 Addition Worksheet adding 3 and 4-digit numbers$

Sums to 100:

Worksheet #1 Worksheet #2 Worksheet #3

Sums to 1,000:

Worksheet #4 Worksheet #5 Worksheet #6

Sums to 10,000:

Worksheet #7 Worksheet #8 Worksheet #9

More addition worksheets

Find all of our addition worksheets, from adding by counting objects to addition of multiple large numbers in columns.

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