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...

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

Practice solving word problems with addition and subtraction. These questions are start unknown problems including add to and take from problems. Numbers used are 100 or less. Students receive immediate feedback and have the opportunity...

Read and interpret picture graphs. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a tutorial video, or receive hints.

Automaticity with patterns that allow students to easily manipulate larger numbers is the aim of this lesson.

Use estimation to find a reasonable solution to multi-digit addition and subtraction problems. Numbers are less than or equal to 1000. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a...

In this exercise, students practice adding two-digit numbers by making tens. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.

In this exercise, students practice adding two-digit numbers by making tens. Students receive immediate feedback and have the opportunity to watch tutorial videos, get hints, and try questions repeatedly.

In this Cyberchase video, Bianca has a new job decorating fresh-baked donuts. Her supervisor asked her to decorate 12 trays of donuts, but Bianca thought he meant 12 donuts. When she discovers her mistake, she uses multiplication...

Add or subtract complex numbers, and plot the result in the complex plane. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

In this exercise, students practice subtraction within 100. Students receive immediate feedback and have the opportunity to watch a video tutorial, get hints, and try questions repeatedly. CCSS.Math.Content.3.NBT.A.2 Fluently add and...

In this exercise, students practice subtracting two-digit numbers (no regrouping). Students receive immediate feedback and have the opportunity to watch a tutorial video, get hints, and try questions repeatedly.

Practice addition and subtraction with complex numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.