Learn about number bonds to 100 using tens and ones. Add 2-digit numbers Learn how to add two-digit numbers. Adding 3-digit and 1-digit numbers together Explore examples and a video to show how to add ...

Write the numbers in a vertical list, lining up the decimal points. If the numbers have a different amount of digits, there may be some gaps in the columns. Fill in any gaps with a zero so that each ...

You can subtract in Excel by placing a minus sign in front of any numbers you want to deduct. You can add and subtract a bunch of numbers at once using the equal sign or SUM function. You can add and ...

Represent teen numbers with addition and subtraction equations involving one 10. Represent 10 using a number bond and 10-frame with a missing addend. Use Notice and Wonder with a 10-frame, connecting ...

To sum and subtract in Google Sheets, use the formula =SUM(x:y) or =MINUS(x,y) in the desired cells and input the relevant values. Press Enter to get the results. Adding up columns or rows of numbers ...

Practice adding and subtracting within 20 using a Double 10-frame & number line. Represent a teen number using a number bond to solve a Mystery Math Mistake. Use Notice and Wonder with a marble game ...