Addition
36+42=
78
96-42
54
74+19=93
What is it called when we group 10 tens to make 100?
Bundling
45+___=157
112
165-87=
78
There are some pencils in the supply bin. Sebastian takes out 43. Now there are 57 left. How many pencils were there in the supply bin to start?
43+57= 100
100-43=57
How old is Ms. Wiecking? Write an equation that has a total equal to my age.
25
268+59+12
339
__=145-36
109
Show two ways to find 185-48.
137