What your learner will practice
Building two-digit confidence. Second graders connect place value to addition, subtraction and familiar everyday situations. Encourage grouping into tens and ones.
With missing numbers in Grade 2, the goal is to build understanding and to explain the method, not just get a number. Take breaks and repeat short sessions when needed.
How to solve missing numbers problems
- 1Name the unknown quantity and read both sides of the equation.
- 2Use the inverse operation to find it.
- 3Substitute your result back into the original equation.
Common mistake to watch for
An equals sign means both sides have the same value.
Try these six examples
Read each question, solve on paper, and then check the answer. The full printable sets below provide 20 new problems each.
- 21 - ______ = 20 Answer: 1
- ______ + 20 = 30 Answer: 10
- 29 - ______ = 23 Answer: 6
- 33 - ______ = 26 Answer: 7
- 28 - ______ = 9 Answer: 19
- 23 - ______ = 1 Answer: 22
Helpful teaching idea
Try a balance-scale drawing to make the equality visible.
Try a short warm-up, then have the learner explain one problem with a drawing or written number sentence.