How to use this sheet

  • Have the child put a finger on the start number and hop along the line, counting each jump aloud.
  • Before adding or subtracting, ask which way the answer will move: to the right for adding, to the left for taking away.
  • For lines that skip count, find what each mark is worth first by looking at two marks with numbers.

Common mistakes

  • Counting the start number as the first jump, so 5 + 3 lands on 7. Count the jumps, not the marks.
  • Going the wrong way to subtract. Write a small arrow at each end of the line: bigger numbers to the right.
  • Assuming every mark is worth 1 when the line counts by 2s, 5s or 10s. Check two marks with numbers first.

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