Practice telling which strategies work for adding two numbers within 100. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Practice telling if a shape has been divided into equal parts. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Determine which angle has a greater measure by looking at the size of the opening between the angle's rays. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Estimate the size of angles when given a picture or a situation. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Add whole numbers with sums less than 1,000,000. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Multiply 2-digit numbers by 2-digit numbers. Regrouping (carrying) needed. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Practice multiplication problems like 5x500=2500. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Solve a subtraction problem with two fractions with like denominators. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Practice these problems to see how decimals and fractions can represent the same number. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

See how we can use the axes on the coordinate plane to represent quantities. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Compare 2 numbers to thousandths based on meanings of the digits in each place. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Practice converting decimals between standard form and expanded form. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Multiply 2-3 digits by 3-4 digits with carrying. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Subtract larger whole numbers, tenths, and hundredths like 35.65-17.34. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Generate patterns using given rules. Identify relationships between terms. Graph ordered pairs consisting of corresponding terms from the patterns. Students receive immediate feedback and have the opportunity to try questions repeatedly,...

Practice interesting area and circumference problems. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Practice finding the area or circumference of part of a circle. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Use understanding of vertical, complementary, and supplementary angles to set up an appropriate equation to solve for a missing angle measure. Students receive immediate feedback and have the opportunity to try questions repeatedly,...

Practice converting a fraction to a decimal. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Practice counting without making mistakes. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Practice counting objects in pictures. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Practice counting up to 10 objects. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Practice subtracting. All numbers in these problems are 20 or less. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a tutorial video, or receive hints.

This tutorial includes a video, questions and explanations around using unit squares to see why multiplying side-lengths can also find the area of rectangles.