# Using mental math to add tens or ones to a number

## Quiz by Sara Gonsiewski

Grade 1

Mathematics

Common Core

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20 questions

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- Q1
What is the sum of 30 + 8?

Users enter free textType an Answer30s1.NBT.C.4 - Q2
What is the sum of 37 + 2?

Users enter free textType an Answer30s1.NBT.C.4 - Q3
What is the sum of 21 + 40?

Users enter free textType an Answer30s1.NBT.C.4 - Q4
What is the sum of 20 + 5?

Users enter free textType an Answer30s1.NBT.C.4 - Q5
What is the sum of 57 + 10?

Users enter free textType an Answer30s1.NBT.C.4 - Q6
What is the sum of 4 + 33?

Users enter free textType an Answer30s1.NBT.C.4 - Q7
What is the sum of 50 + 34?

Users enter free textType an Answer30s1.NBT.C.4 - Q8
Find the missing addend: ___ + 6 = 46

Users enter free textType an Answer30s1.NBT.C.4 - Q9
Find the missing addend: 60 + ___ = 68

Users enter free textType an Answer30s1.NBT.C.4 - Q10
Find the missing addend: 16 + ___ = 36

Users enter free textType an Answer30s1.NBT.C.4 - Q11
What is the sum for 40 + 37?

Users enter free textType an Answer30s1.NBT.C.4 - Q12
Find the missing addend: ___ + 20 = 25

Users enter free textType an Answer30s1.NBT.C.4 - Q13
Find the missing addend: ___+ 2 = 72

Users enter free textType an Answer30s1.NBT.C.4 - Q14
Find the sum: ___ = 40 + 6

Users enter free textType an Answer30s1.NBT.C.4 - Q15
Find the sum: ___ = 50 + 3

Users enter free textType an Answer30s1.NBT.C.4