Addition
15+25
40
23-9
14
What digit is in the tens place? What is the value of the digit?
308
0 TENS
What do we draw when we want to make sense of a word problem?
Tape diagram or number bond
Solve using place value or standard algorithm.
119+27
146
161-158=
USE A PLACE VALUE CHART TO SOLVE
165-28=
137
Ms. Davidson has 43 pencils.
Mr. Smith 29 more pencils than Ms. Davidson.
How many pencils does Mr. Smith?
Mr. Smith has 72 pencils
141+9+25=
175
32+____=155
155-32= 123
use a place value chart to solve
102-88=
14
There are some toys at the school store.
1st grade brought 42 toys.
Now there are 48 toys at the schools store.
How many toys were at the school to start?
90
29+27+23+11=
90