Combining Tens and Ones

The sum of

45 + 17

is the same as:

• 50 +12

• 512

• 52

27

72

20

• 27

• 72

• 20

• 16

• 13

• 19

​ (a)  

• 2

• 5

• 1

• 20

Stella places taks in groups of 10. There are ​ (a)   tens and ​ (b)   taks in all.

• 4

• 40

• 8

• 80

How many tens and ones?

• 1 ten and 9 ones

• 2 tens and 1 one

• 1 ten and 2 ones

How many tens and ones?

• 4 tens and 4 ones

• 7 tens and 8 ones

• 2 tens and 6 ones

How many tens and ones?

• 5 tens and 4 ones

• 3 tens and 3 ones

• 2 tens and 7 ones

How many tens and ones?

• 4 Tens

  4 Ones

• 4 Tens

  2 Ones

• 2 Tens

  2 ones

• 2 Tens

  4 Ones

• 2 Tens 
  5 Ones
• 2 Tens
  0 Ones
• 2 Tens
  3 Ones
• 3 Tens
  2 Ones