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3rd Grade Mental Math Worksheets and Activities
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Mental Math
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Subtract a 2-digit number from whole hundreds - Ink
Level
Grade
3rd Grade
Topic
Subtraction
Subtract a 2-digit number from whole hundreds - Ink
In this subtraction worksheet, the student subtracts 2-digit numbers from whole hundreds. Worksheet instructions: Solve each subtraction problem. Try to figure out the answers mentally without writing down the steps.
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Subtract a 2-digit number from whole hundreds - Checklist
Level
Grade
3rd Grade
Topic
Subtraction
Subtract a 2-digit number from whole hundreds - Checklist
In this subtraction worksheet, students subtract 2-digit numbers from whole hundreds. Worksheet instructions: Solve each subtraction problem. Try to figure out the answers mentally without writing down the steps.
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Multiplication Tables (2-10 practice) - Koi fish
Level
Grade
3rd Grade
Topic
Multiplication
Multiplication Tables (2-10 practice) - Koi fish
Worksheet instructions: Solve each equation below. Try to solve these problems mentally, without writing down intermediary steps.
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Multiplication Tables (2-10 practice) - Tablet
Level
Grade
3rd Grade
Topic
Multiplication
Multiplication Tables (2-10 practice) - Tablet
Worksheet instructions: Solve each equation below. Try to solve these problems mentally, without writing down intermediary steps.
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Mental math (with borrowing): Subtracting 2-digit numbers - Moon
Level
Grade
3rd Grade
Topic
Subtraction
Mental math (with borrowing): Subtracting 2-digit numbers - Moon
Worksheet instructions: Solve each subtraction problem. Try to figure out the answers mentally without writing down the steps.
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Mental math (with borrowing): Subtracting 2-digit numbers - Flag
Level
Grade
3rd Grade
Topic
Subtraction
Mental math (with borrowing): Subtracting 2-digit numbers - Flag
Worksheet instructions: Solve each subtraction problem. Try to figure out the answers mentally without writing down the steps.
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Mental math (with borrowing): Subtracting 2-digit numbers - Finishline
Level
Grade
3rd Grade
Topic
Subtraction
Mental math (with borrowing): Subtracting 2-digit numbers - Finishline
Worksheet instructions: Solve each subtraction problem. Try to figure out the answers mentally without writing down the steps.
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Add 2-digit numbers (sum under 100) - Bunny
Level
Grade
3rd Grade
Topic
Addition
Add 2-digit numbers (sum under 100) - Bunny
Worksheet instructions: Find the missing numbers in each circle by adding the given numbers. If you find it easy, try to figure out the answers mentally (without writing down the intermediary steps).
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Add 2-digit numbers (sum under 100) - Grapes
Level
Grade
3rd Grade
Topic
Addition
Add 2-digit numbers (sum under 100) - Grapes
Worksheet instructions: Find the missing numbers in each circle by adding the given numbers. If you find it easy, try to figure out the answers mentally (without writing down the intermediary steps).
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Multiplying by 10, 100 or 1,000 with missing factors - Halloween
Level
Grade
3rd Grade
Topic
Multiplication
Multiplying by 10, 100 or 1,000 with missing factors - Halloween
Worksheet instructions: Multiply by 10, 100 or 1000 to find the missing factor in each problem. Try solving these questions mentally without writing down intermediary steps.
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Multiplying by 10, 100 or 1,000 with missing factors - Heart Shades
Level
Grade
3rd Grade
Topic
Multiplication
Multiplying by 10, 100 or 1,000 with missing factors - Heart Shades
Worksheet instructions: Multiply by 10, 100 or 1000 to find the missing factor in each problem. Try solving these questions mentally without writing down intermediary steps.
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Multiplying by 10, 100 or 1,000 with missing factors - Cat Shades
Level
Grade
3rd Grade
Topic
Multiplication
Multiplying by 10, 100 or 1,000 with missing factors - Cat Shades
Worksheet instructions: Multiply by 10, 100 or 1000 to find the missing factor in each problem. Try solving these questions mentally without writing down intermediary steps.
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Multiplying by 10, 100 or 1,000 with missing factors - Diamond Shades
Level
Grade
3rd Grade
Topic
Multiplication
Multiplying by 10, 100 or 1,000 with missing factors - Diamond Shades
Worksheet instructions: Multiply by 10, 100 or 1000 to find the missing factor in each problem. Try solving these questions mentally without writing down intermediary steps.
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Multiplying by 10, 100 or 1,000 with missing factors - Cool Nut
Level
Grade
3rd Grade
Topic
Multiplication
Multiplying by 10, 100 or 1,000 with missing factors - Cool Nut
Worksheet instructions: Multiply by 10, 100 or 1000 to find the missing factor in each problem. Try solving these questions mentally without writing down intermediary steps.
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Multiplying by 10, 100 or 1,000 with Missing Factors - Watermelon
Level
Grade
3rd Grade
Topic
Multiplication
Multiplying by 10, 100 or 1,000 with Missing Factors - Watermelon
Worksheet instructions: Multiply by 10, 100 or 1000 to find the missing factor in each problem. Try solving these questions mentally without writing down intermediary steps.
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Mental Math: Adding two 2-digit Numbers (no carrying) - Pencil Fun
Level
Grade
3rd Grade
Topic
Addition
Mental Math: Adding two 2-digit Numbers (no carrying) - Pencil Fun
Worksheet instructions: Solve each problem by adding two 2-digit numbers (no carrying or regrouping). Try to figure out the answers mentally without writing down the steps.Solve each problem by adding two 2-digit numbers (no carrying or regrouping). Try to figure out the answers mentally without writing down the steps.
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Mental Math: Adding two 2-digit Numbers (no carrying) - Calculator
Level
Grade
3rd Grade
Topic
Addition
Mental Math: Adding two 2-digit Numbers (no carrying) - Calculator
Worksheet instructions: Solve each problem by adding two 2-digit numbers (no carrying or regrouping). Try to figure out the answers mentally without writing down the steps.Solve each problem by adding two 2-digit numbers (no carrying or regrouping). Try to figure out the answers mentally without writing down the steps.
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Mental Math: Adding two 2-digit Numbers (no carrying) - Blackboard Cat
Level
Grade
3rd Grade
Topic
Addition
Mental Math: Adding two 2-digit Numbers (no carrying) - Blackboard Cat
Worksheet instructions: Solve each problem by adding two 2-digit numbers (no carrying or regrouping). Try to figure out the answers mentally without writing down the steps.Solve each problem by adding two 2-digit numbers (no carrying or regrouping). Try to figure out the answers mentally without writing down the steps.
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Mental Math: Adding two 2-digit Numbers (no carrying) - Smart Cat
Level
Grade
3rd Grade
Topic
Addition
Mental Math: Adding two 2-digit Numbers (no carrying) - Smart Cat
Worksheet instructions: Solve each problem by adding two 2-digit numbers (no carrying or regrouping). Try to figure out the answers mentally without writing down the steps.Solve each problem by adding two 2-digit numbers (no carrying or regrouping). Try to figure out the answers mentally without writing down the steps.
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Mental Math: Adding two 2-digit Numbers (no carrying) - Purple Pencil
Level
Grade
3rd Grade
Topic
Addition
Mental Math: Adding two 2-digit Numbers (no carrying) - Purple Pencil
Worksheet instructions: Solve each problem by adding two 2-digit numbers (no carrying or regrouping). Try to figure out the answers mentally without writing down the steps.Solve each problem by adding two 2-digit numbers (no carrying or regrouping). Try to figure out the answers mentally without writing down the steps.
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Mental Math: Adding two 2-digit Numbers (no carrying) - Notebooks
Level
Grade
3rd Grade
Topic
Addition
Mental Math: Adding two 2-digit Numbers (no carrying) - Notebooks
Worksheet instructions: Solve each problem by adding two 2-digit numbers (no carrying or regrouping). Try to figure out the answers mentally without writing down the steps.Solve each problem by adding two 2-digit numbers (no carrying or regrouping). Try to figure out the answers mentally without writing down the steps.
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