ADDING THREE NUMBERS

Add three numbers together by spotting clever pairs that make ten.

L2L3

CS.N.1.4·Using addition properties for quick calculation(I)CS.N.2.3·Performing addition and subtraction 0–1000(II)

Section 1 / 3

ADDING THREE NUMBERS AT ONCE

When you see three numbers to add, don't just go left to right! Look for clever pairs - two numbers that make 10 (or another friendly number). Add those first, then add the third.

4 + 3 + 6

1Look for pairs that make 10: 4 + 6 = 10

210 + 3 = 13

= 13

LEADER TIP

Always ask students to look for pairs that make 10 before adding straight through. The order of addition does not matter!

BEFORE THIS LESSON, TRY

Making Ten

PRACTICE WITH THESE GAMES

Find the Pairs

Number Balance

Equation Builder

Want more practice? Generate printable worksheets with similar problems.

Go to Worksheets

ADDING THREE NUMBERS

What would you like to share?

ADDING THREE NUMBERS