10s and 1s First Grade

Front

What are 10s and 1s?

Back

10s are groups of ten, and 1s are single units. For example, in the number 15, there is 1 group of 10 and 5 single units.

Front

How do you count by 10s?

Back

You start at 0 and keep adding 10: 0, 10, 20, 30, 40, etc.

Front

What is the next number after 24 and 25?

Back

The next number is 26.

Front

What is 40 plus 20?

Back

40 plus 20 equals 60.

Front

If you have 2 groups of 10 and 3 single units, what number do you have?

Back

You have 23.

Front

What comes after 50 when counting by 10s?

Back

The number that comes after 50 is 60.

Front

What is the number before 27?

Back

The number before 27 is 26.

Front

How many 10s are in the number 59?

Back

There are 5 groups of 10 in the number 59.

Front

What is 10 more than 22?

Back

10 more than 22 is 32.

Front

If you have 1 group of 10 and 9 single units, what number do you have?

Back

You have 19.