Worksheet: Using Number Facts to Add

In this worksheet, we will practice using addition facts with sums to 20 to solve related problems with sums to 100.

Q1:

Describe the rule for this number pattern 7,22,37,52,67,.

  • Aadding 16
  • Badding 15
  • Cadding 14

Q2:

Here is a strategy to subtract.

Use this strategy to find the missing number.

Which of these is a related subtraction equation?

  • A
  • B
  • C

Q3:

14+32=46. Find 14+33.

Q4:

If 35 is 10 less than 45 and 45+13=58, find 35+13.

Q5:

Use 7+2 to solve 17+2.

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