3rd Grade Mental Math Worksheets and Activities

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.

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.

Worksheet instructions: Solve each equation below. Try to solve these problems mentally, without writing down intermediary steps.

Worksheet instructions: Solve each equation below. Try to solve these problems mentally, without writing down intermediary steps.

Worksheet instructions: Solve each subtraction problem. Try to figure out the answers mentally without writing down the steps.

Worksheet instructions: Solve each subtraction problem. Try to figure out the answers mentally without writing down the steps.

Worksheet instructions: Solve each subtraction problem. Try to figure out the answers mentally without writing down the steps.

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).

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).

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.