Hundreds chart subtraction

Front

To subtract ones on a hundreds chart, I move:

Back

to the left

Front

What is Ten Less than 70?

Back

60

Front

___ = 47 + 28

Back

75

Front

To subtract tens on a hundreds chart, I move:

Back

up

Front

What is one less than 68?

Back

67

Front

What do you do to find a number that is 10 less?

Back

Move up one row on the hundreds chart.

Front

What do you do to find a number that is 1 less?

Back

Move to the left on the same row.

Front

If I subtract 10 from 50, what number do I get?

Back

40

Front

If I subtract 1 from 30, what number do I get?

Back

29

Front

What is the result of 80 - 20?

Back

60