Grade 2 Mental Math Practice
This worksheet helps second-grade students practice mental math strategies for addition and subtraction within 100.
Includes
Standards
Topics
Grade 2 Mental Math Practice
Name:
Date:
Score:
Read each question carefully and solve it using mental math. Try not to use paper or a calculator!
Fill in the blank with the correct answer.
1. 10 + 7 =
2. 20 + 5 =
3. 30 + 9 =
4. 15 + 3 =
5. 24 + 6 =
Fill in the blank with the correct answer.
1. 18 - 8 =
2. 25 - 5 =
3. 30 - 7 =
4. 12 - 4 =
5. 40 - 10 =
1. Which strategy would you use to solve 35 + 9 mentally?
Count by ones
Make a ten (35+5=40, 40+4=44)
Draw a picture
Use your fingers
2. Which strategy would you use to solve 50 - 8 mentally?
Count backward by ones
Subtract from a ten (50-10=40, 40+2=42)
Use a calculator
Ask a friend
Solve the following word problems using mental math.
1. Sarah had 12 cookies. She baked 8 more. How many cookies does Sarah have now?
2. Tom had 20 stickers. He gave away 6 stickers. How many stickers does Tom have left?
Use the number line to help you solve the problem.
1. Start at 10. Jump forward 5. Where do you land?
Answer:
2. Start at 20. Jump backward 7. Where do you land?
Answer:
Read each statement and circle True or False.
1. Adding 10 to a number always increases the tens digit by one.
True
False
2. Subtracting a small number is harder than adding it.
True
False
Related Worksheets
Number Line Adventures
Practice plotting numbers on a number line and identifying missing numbers for second graders.
Ordering Three-Digit Numbers
Practice ordering three-digit numbers from least to greatest and greatest to least.
Number of the Day (Grade 2)
Practice number sense with various activities for the number 35, including counting, place value, and simple operations.
Numeral Recognition and Ordering
A second-grade math worksheet focusing on numeral recognition, ordering, and place value.
Number Families Worksheet
Explore number families and their relationships with this Grade 2 math worksheet, focusing on addition and subtraction facts.
Decreasing Sequences Worksheet
Practice identifying and completing decreasing number sequences for Grade 2 students.
Ordinal Numbers Worksheet
A Grade 2 math worksheet focusing on understanding and identifying ordinal numbers.
Patterns in Three-Digit Numbers
Explore patterns in three-digit numbers, including counting by tens and hundreds, and identifying number sequences.