MathematicsGrade 2en

➕ Addition Within 100

Master addition strategies for two-digit and one-digit numbers, as well as adding two two-digit numbers. This quiz explores essential techniques like counting on, doubling, making tens, and regrouping to build fluency with addition within 100. You'll also discover how the commutative property of addition helps us solve problems flexibly. **What you'll learn:** - Add two-digit and one-digit numbers using multiple strategies - Add two two-digit numbers with and without regrouping - Use doubling and making tens to solve addition problems efficiently - Apply the commutative property of addition to check answers - Represent addition using place value understanding

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Questions in this quiz

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Question 1
What is $23 + 5$ ?
Question 2
Which number sentence shows the commutative property of addition?
Question 3
What is $34 + 12$ using regrouping?
Question 4
Counting on by ones from 27 is a good strategy to solve $27 + 8$ .
Question 5
Jade has 25 stickers. She buys 4 more. How many stickers does she have now?
Question 6
What strategy helps us solve $15 + 15$ quickly?
Question 7
What is $32 + 18$ using the making tens strategy?
Question 8
The sum of $42 + 7$ is different from the sum of $7 + 42$ .
Question 9
What is $56 + 3$ ?
Question 10
Which addition problem equals 50?
Question 11
What is $21 + 14$ using regrouping?
Question 12
When we add $38 + 4$ , we can use the strategy of counting on by ones.
Question 13
What is $17 + 13$ using making tens?
Question 14
Maya solves $45 + 12$ and gets 57. Is this correct?
Question 15
What is $20 + 20$ using doubling?
Question 16
To solve $29 + 6$ , we can use making tens by adding $29 + 1 = 30$ , then adding 5 more to get 35.
Question 17
What is $47 + 2$ ?
Question 18
Which pair of sums shows the commutative property?