Math

Addition

 

Example

Ones 7 + 6
1-20 + Ones 12 + 4
10s 60 + 70
Double + 10s 78 + 20
Double Doubles 45 + 63
Double 10s 550 + 190
Hundreds 400 + 800
Triples + Hundreds 457 + 400
Triples + Double 10s 518 + 520
Triple Triples 654 + 168
Multiplication
Twos 2,4,6,8 or 10 x 6
Single digits 4 x 8
Single times Double Digits 3 x 42
Double Digits 23 x 64
Double Times Triple 52 x 421
By Kris LeBlanc (Lara & Nikolas' Papa)