Learn first grade math—addition, subtraction, length, graphs, time, and shapes. (aligned with Common Core standards)

We will learn about the ones and tens place values and compare 2-digit numbers.

First, we will compare objects by length and measure objects with same-size length units without gaps or overlaps. Next, we will read and interpret bar graphs, tell time on an analog clock, and learn about …

Test your knowledge of the skills in this course. Start Course challenge

First, we will learn how addition and subtraction relate. Next, we will add and subtract numbers less than or equal to 20 and solve addition and subtraction word problems.

Mar 15, 2021 · What do Khan Academy’s interactive math worksheets cover? Our 100,000+ practice questions cover every math topic from arithmetic to calculus, as well as ELA, Science, Social …

Unit 1: 1st quarter Unit mastery: 0% 2-Dimensional shapes (for advanced learners) Whole numbers up to 100* Addition with sums up to 20* Ordinal numbers up to 10th

Test your knowledge of the skills in this course. Start Course challenge

Take a look at this, it's a really important idea to understand in math. If you add two numbers and you get another number, then you take the result and subtract one of these you're going to get the other …

Math Early math review Learn early elementary math—counting, shapes, basic addition and subtraction, and more.