Counting by Ones and Tens

70+10=

• 70

• 80

• 65

• 75

How many ones cubes are in a block (one block=10)

Evaluate responses using AI:

OFF

Can counting by ones and tens work together?

• Yes

• No

• Maybe

10+1=

• 11

• 111

• 10

• 20

When counting by 10s. What's the missing number?

• 40

• 30

• 20

• 10

When counting by 10s. What's the missing number?

• 50

• 40

• 10

• 0

Start at 99. Count on by 1's to 102.

• 100, 101, 103

• 98, 99, 102

• 99, 109, 119

• 100, 101, 102

Count by 10s:

20 more than 40 is:

• 30

• 50

• 70

• 60

Count by 10s: before 80

• 70

• 90

• 60

• 100

Count by ones: 97, __, ___, ___, 101

• 99, 98, 96

• 110, 118, 120

• 98, 99, 100