Addition Strategies
Pick A Strategy That Works For YOU!!!!
Use a known fact
7 + 5 = 12 so 70 + 50 = 120
Count on
90 + 25 is the same as 90 + 10 + 10 +5
Use doubles
125 + 125 is the same as double 100 + 25
Add the parts
85 + 32 is the same as 85 + 30 + 2
Use place value
37 + 16 is the same as (30 + 10) + (7 + 6) or (7 + 6) + (30 + 10)
Make a ten
28 + 17 is the same as 30 + 15
Round or adjust
49 + 12 is the same as 50 + 12 - 1
Use compatible pairs
8 + 5 + 12 + 15 is the same as (8 + 12) + (5 + 15)
7 + 5 = 12 so 70 + 50 = 120
Count on
90 + 25 is the same as 90 + 10 + 10 +5
Use doubles
125 + 125 is the same as double 100 + 25
Add the parts
85 + 32 is the same as 85 + 30 + 2
Use place value
37 + 16 is the same as (30 + 10) + (7 + 6) or (7 + 6) + (30 + 10)
Make a ten
28 + 17 is the same as 30 + 15
Round or adjust
49 + 12 is the same as 50 + 12 - 1
Use compatible pairs
8 + 5 + 12 + 15 is the same as (8 + 12) + (5 + 15)