Number Bonds to 21 Fun!
Year 2 Mathematics Learning number partnerships Building fluency with numbers
What are Number Bonds?
Two numbers that add together Like best friends who make a team They always equal the same total Example: 10 + 11 = 21
Let's Find Number Bonds to 21!
Count on your fingers Use counting blocks Draw pictures to help Work with a partner
Easy Number Bonds to 21
Count on your fingers Use counting blocks Draw pictures to help Work with a partner
Can you find more?
What about 16 + ? = 21 Or 15 + ? = 21 Think about it with your partner Raise your hand when ready!
More Number Bonds to 21
{"left":"16 + 5 = 21\n15 + 6 = 21\n14 + 7 = 21","right":"13 + 8 = 21\n12 + 9 = 21\n11 + 10 = 21"}
Number Bond Memory Game
Count on your fingers Use counting blocks Draw pictures to help Work with a partner
Quick Fire Challenge!
Count on your fingers Use counting blocks Draw pictures to help Work with a partner
Well Done, Number Bond Champions!
You learned all number bonds to 21 You can use these every day Keep practicing to get faster Remember: numbers are friends that work together!
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