In this video, Carlos learns how to subtract numbers with decimals.

In this video, Jackson uses a number line to learn how to subtract.

In this video, Alex learns to divide whole numbers by moving the decimal point.

In this video, Alex and Marta learn how to estimate differences by rounding numbers.

In this video, Alex learns to add 3-digit numbers using hundreds and tens.

In this video, Carlos learns how to use mental math to add numbers with decimals.

In this video, Alex learns how to estimate a division problem when both numbers are decimals.

In this video, Jada learns to add two numbers using tens and ones on a hundred chart.

In this video, Alex learns how to multiply large multiples of ten using smaller numbers.

In this video, Marta learns how to write a subtraction number sentence, and how to use the minus sign.

This video shows the process of finding equivalent ratios by multiplying and dividing a fraction by the same non-zero number.