Page 25 - flip prime 2 second term
P. 25
Adding & Subtracting
without renaming
Lessons(65,66)
Remember that
62 53 10 84
+ 37 + 24 +20 + 15
……... ……. ……. ……..
49 67 85 33
- 24 - 32 - 45 - 20
……… …….. ……. …….
20
