Lesson Worksheet: Making Numbers up to 20 Mathematics • 1st Grade

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In this worksheet, we will practice making numbers up to 20 in multiple ways using both addition and subtraction.

Q1:

Which subtraction sentence is equal to 8 + 5?

  • A9−4
  • B5−8
  • C15−2
  • D8−5
  • E2−15

Q2:

Which of the following is equal to 9−5?

  • A9+5
  • B3+1
  • C3−3
  • D3−1

Q3:

Which of these is NOT equal to 9?

  • A17−8
  • B10−1
  • C15−6
  • D12−2
  • E14−5

Q4:

Which of these is not equal to 11?

  • A9+2
  • B14−3
  • C15−4
  • D7+4
  • E19−7

Q5:

Which of the following equals 2?

  • A6−3
  • B6−4
  • C5−4
  • D4−3

Q6:

Here are some counters with numbers on them.

Choose the two counters that make the equation true.

  • A6, 7
  • B10, 4
  • C7, 4

Q7:

Which of these is NOT equal to 15?

  • A1+14
  • B12+3
  • C14+2
  • D10+5
  • E6+9

Q8:

Which of the following is equal to 1?

  • A2+0
  • B1+1
  • C1+2
  • D1+0

Q9:

Which of the following is equal to 14?

  • A5+6+4
  • B5+6+3
  • C6+7+3

Q10:

Which number sentence is equal to 2?

  • A5−2
  • B4−1
  • C5−1
  • D4−2
  • E3−2

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