adding and subtracting tens and ones

Front

What is 30 + 4 in standard form?

Back

34

Front

What is the sum of 40 + 6?

Back

46

Front

Use the hundreds chart to add: 46 + 20 = ?

Back

66

Front

Kim has 5 boxes of 10 crayons. Her dad gives her 3 more crayons. How many crayons does Kim have now?

Back

53 crayons

Front

What is 45 + 40?

Back

85

Front

What does 'adding' mean?

Back

Combining two or more numbers to get a total.

Front

What does 'subtracting' mean?

Back

Taking one number away from another.

Front

If you have 10 and you add 10, what do you get?

Back

20

Front

If you have 20 and you subtract 10, what do you get?

Back

10

Front

What is the sum of 10 + 10?

Back

20