3️⃣➕

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?