Name
Date

1. 1 55
10

2. 2 76
50

3. 3 55
60

4. 4 33
20

5. 5 62
10

6. 6 39
80

7. 7 79
80

8. 8 91
50

9. 9 75
70

10. 10 39
80

Answers Key
1. 1 55
10
65
2. 2 76
50
126
3. 3 55
60
115
4. 4 33
20
53
5. 5 62
10
72
6. 6 39
80
119
7. 7 79
80
159
8. 8 91
50
141
9. 9 75
70
145
10. 10 39
80
119

# Add Two-digit Number to a Multiple of Ten Worksheet

The CCSS.MATH.1.NBT.C.4 worksheets with answers for 1st grade students to practice problems on Add a two-digit number to a one-digit number and a two-digit number to a multiple of ten (within 100) by using concrete models, drawings, strategies based on place value, properties of operations, and/or the relationship between addition and subtraction to explain the reasoning used is available online for free in printable and downloadable (pdf & image) format. For more questions and answers on 1.NBT.C.4 math activities, tap on generate new worksheet to learn, practice, test and verify math skills under the common core cluster (1NBTC) use place value understanding and properties of operations to add and subtract in domain number and operations in base ten.

How to Use this Worksheet

Objective:
To practice these math problems of 1NBTC4 worksheets, students are required to add a two-digit number to a one-digit number and a two-digit number to a multiple of ten (within 100). Use concrete models, drawings, strategies based on place value, properties of operations, and/or the relationship between addition and subtraction to explain the reasoning used. Users can directly refer the answer key to verify the work with steps for the corresponding practice problems given in the 1.NBT.C.4 activities under the domain number and operations in base 10 in common core state standards for 1st grade mathematics. The main objective of these 1.NBT.C.4 practice problems and answers is to make students to understand how to (1NBTC) Use place value understanding and properties of operations to add and subtract.

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