NUMBER BONDS MASTERY

Master the pairs that make 10, 20, and 100 - the foundation of mental maths.

L1L2L3

CS.N.P.1·Recognizing and forming groups of objects(P)CS.N.1.3·Performing addition with numbers 0–100(I)

Section 1 / 3

FRIENDS OF TEN

Number bonds to 10 are the most important facts in mental maths: 1+9, 2+8, 3+7, 4+6, 5+5. When you see any addition or subtraction, your brain should instantly spot these pairs.

Bonds to 10

11+9, 2+8, 3+7, 4+6, 5+5

2These are your secret weapons!

= 10

LEADER TIP

Drill bonds to 10 until they are truly automatic - within 2 seconds. Everything else in mental maths builds on this.

PRACTICE WITH THESE GAMES

Find the Pairs

Timed Pairs

Number Balance

Want more practice? Generate printable worksheets with similar problems.

Go to Worksheets

CONTINUE WITH:

Bridging Through Ten

NUMBER BONDS MASTERY

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NUMBER BONDS MASTERY