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Using mental math to add tens or ones to a number

Quiz by Sara Gonsiewski

Grade 1
Math
Common Core

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20 questions
Show answers
  • Q1

    What is the sum of 30 + 8? 

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    30s
    1.NBT.C.4
  • Q2

    What is the sum of 37 + 2?

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    30s
    1.NBT.C.4
  • Q3

    What is the sum of 21 + 40?

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    30s
    1.NBT.C.4
  • Q4

    What is the sum of 20 + 5? 

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    30s
    1.NBT.C.4
  • Q5

    What is the sum of 57 + 10?

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    30s
    1.NBT.C.4
  • Q6

    What is the sum of 4 + 33?

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    30s
    1.NBT.C.4
  • Q7

    What is the sum of 50 + 34?

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    30s
    1.NBT.C.4
  • Q8

    Find the missing addend: ___ + 6 = 46 

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    30s
    1.NBT.C.4
  • Q9

    Find the missing addend: 60 + ___ = 68

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    30s
    1.NBT.C.4
  • Q10

    Find the missing addend: 16 + ___ = 36

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    30s
    1.NBT.C.4
  • Q11

    What is the sum for 40 + 37?

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    30s
    1.NBT.C.4
  • Q12

    Find the missing addend: ___ + 20 = 25 

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    30s
    1.NBT.C.4
  • Q13

    Find the missing addend: ___+ 2 = 72

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    30s
    1.NBT.C.4
  • Q14

    Find the sum: ___ = 40 + 6

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    30s
    1.NBT.C.4
  • Q15

    Find the sum: ___ = 50 + 3

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    30s
    1.NBT.C.4

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