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.

Practice solving word problems by subtracting small numbers (numbers 10 or less). Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

When subtracting ten from a 2 digit number, 2nd graders should be able to compute the answer as fluently and comfortably as do when they add ten to a 2 digit number.

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

Practice solving word problems by adding small numbers (numbers 10 or less). Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

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.

Second graders increase their understanding of place value by manipulating larger numbers.

Try to solve ten addition or subtraction problems in less than five minutes using this interactive worksheet. Immediate feedback is given. A suitable tool for use as a quick assessment.

In this lesson, students will observe patterns with the use of a Hundreds Chart, web-based practice (IXL Hundreds Chart Practice), and by playing a game (10 More or 10 Less). The patterns noticed through the various activities will help...

A guide to support parents as they work with their students in number pairs, addition and subtraction to 10.

A guide to support parents as they work with their students in sums and differences to 20.

Practice subtracting by "taking apart" (with numbers less than 10). Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Practice adding by "putting together" (with numbers less than 10). Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Learners are challenged to solve ten addition or subtraction problems in less than five minutes using this interactive worksheet. Immediate feedback is given.

In this exercise, students practice adding within 10. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.

Practice adding numbers to make 5. 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...

This Jeopardy game challenges students to add, subtract, and multiply decimals. Play with up to 10 teams.

Students explore the concept of number partners by working through an online tutorial and then attempting a ten question quiz that increases in difficulty as questions are answered correctly.

The purpose of this task is for students to add, subtract, multiply, and divide decimal numbers in a real-world context. The weekly income earned by each person in the task is the median weekly income for their education level, but they...