In this subtraction worksheet, students answer twelve 2-digit subtraction problems. The problems are example questions that are to be asked in oral form. For example, "What is 30 take away 12?" The answers are on the second page.

In this subtraction activity, students answer a set of 16 oral questions about subtraction. An answer key is included; a website reference for additional activities is given.

In this problem solving strategies activity, students use the working backward strategy to solve 2 math problems step by step.

Third graders identify appropriate symbols to complete number sentences. In this number sense lesson, 3rd graders are given a number sentence with a blank operation slot. Students fill in the correct operation to make the number sentence...

For this math worksheet, students solve 20 problems in which 3 digit numbers are added with regrouping. There are no examples on the page.

In this homophone worksheet, students complete a crossword puzzle by answering 12 clues. They use the homophones that are located in a word bank at the bottom of the page.

Practice solving word problems by adding and subtracting fractions with like denominators. Gaby ate 2 slices of pie and Daniel ate 2. If there were 10 slices of pie all together, what fraction did they eat? Students receive immediate...

In this exercise, students practice addition using groups of 10 and 100. Students receive immediate feedback and have the opportunity to get hints, watch a video tutorial, and try questions repeatedly. CCSS.Math.Content.3.NBT.A.2...

Practice subtracting 1 or 10 from a 2-digit number (no regrouping). Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Sal adds 53+17 by breaking apart the numbers and making a group of 10. [3:35]

Practice subtracting 1, 10, or 100 from a number. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Practice making groups of 10 and 100 while adding 3-digit numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

The purpose of this task is to help students develop flexible strategies for adding and subtracting within 20. Students will pick 5 number cards from pre-made cards labeled 1-10. Then, another student will pick a "target number" between...