MathTwo-Digit Addition
🎉 The Party Strategy
Break it down like you're at a party!
🎈
✨
Watch Mr. Aube and his sons Oliver and Lucas show you how it's done!
How It Works — Step by Step
1
Write Down Your Question
27 + 59
2
Break It Down! 💃
Decompose those numbers into tens and ones!
2720 + 7
&
5950 + 9
3
Party Time — Who Parties With Who?
Tens Party:20 + 50 = 70
Ones Party:7 + 9 = 16
4
Put It All Together!
70 + 16 =
86 🎉
💡
Mr. Aube's Tip:
This strategy helps kids understand place value — the idea that digits have different values based on their position. Once they get this, mental math becomes way easier!
Practice Resources
Keep practicing tens and ones with the free Place Value Blocks tool — drag tens and ones onto the mat to build numbers, no login needed. Printable practice sheets come with the Family plan.