Fluently Adding and Subtracting Within 100

Front

What place value represents the four in this number: 42?

Back

tens

Front

Using base ten blocks, how would I represent this math problem: 100-60=?

Back

4 tens

Front

What is this manipulative called? (base ten blocks, place value chips, place value charts)

Back

place value charts

Front

If we add 10 to a number, the result will always be bigger than the original number. True or False?

Back

True

Front

We can use base ten blocks, place value chips, and place value charts to add and subtract problems within 100. True or False?

Back

True

Front

What is the sum of 25 and 30?

Back

55

Front

What is the difference when you subtract 15 from 50?

Back

35

Front

If you have 3 tens and 5 ones, what number do you have?

Back

35

Front

What is 70 minus 20?

Back

50

Front

What do you get when you add 40 and 20?

Back

60