Touchpoints without regrouping
Solve this equation: 44-12=
32
Solve this equation: 52-24=
28
What does it mean when you take a number away from another number?
subtraction
79-24=
55
ten ones equals a ____.
ten
Solve this equation: 36-25=
11
Solve this equation: 60-39=
21
Why should you start in the ones?
In case you have to regroup
32-12=
20
What does 4 tens equal?
40
Solve this equation: 82-31=
51
Solve this equation: 136-28=
Can you subtract 9 from 2? Explain
No. There's not enough ones to subtract from 2.
9 is the greater number.
61-20
41
What does the 7 in 37 represent?
7 ones or 7
Solve this equation: 80-60=
20
Solve this equation: 73-65=
8
What should I do if I don't have enough in the ones place?
regroup
90-46
44
What does 10 tens equal?
100
Solve this equation: 97-56=
41
Solve this equation: 68-49=
19
What does it mean to break down a ten? hundred?
decomposing
124-18
106
What does the 9 in 192 represent?
90 or 9 tens