double digit addition
12 Useful Math Hacks That They Didn't Teach You In School WHERE HAS THIS BEEN ALL MY LIFE! Diply, will you be my maths teacher?
Karmen's Kinders of Room 103: Ten Pin Linky! Clasroom Decor Pins
Dice addition worksheets. Third graders can use double dice to add two digit numbers.
Hate Math? These Mental Tricks Will Have You Multiplying Faster Than Einstein Ever Could! « Mind Hacks
Column addition. FREE Domino Double Digit Addition and Subtraction Printable | This Reading Mama
Use base 10 blocks and place value to help understand adding 2 digit numbers and lots of other great addition and subtraction strategies
Double digit multiplication bingo General Outcome: Number Sense 5. Demonstrate, with and without concrete materials, an understanding of multiplication (2-digit by 2-digit) to solve problems. [C, CN, PS, V]
Multiplication Hints and Tricks from Mrs Lane on http://TeachersNotebook.com (30 pages)
This site has great math projects. This can be done with nails in a board and colored yarn. Makes a great pricture too.