# Know Your Numbers: Tens and Ones (10-19)

In this worksheet, students solve addition/subtraction problems by recognising tens and ones.

Key stage:  KS 1

Curriculum topic:   Number: Number and Place Value

Curriculum subtopic:   Recognise Tens and Ones

Difficulty level:

### QUESTION 1 of 10

This worksheet will test your knowledge of tens and ones.

Can you add together the number of packets of cakes with the number of loose cakes?

There are ten cakes in a packet.

Example:

You have one packet of cakes and nine loose cakes.

Which number is missing?

 19 = 10 +

You have 19 cakes in total.

There are 10 cakes in the packet.

There are 9 loose cakes.

 19 = 10 + 9

Which number is missing, when you have one packet of cakes and three loose cakes?

 13 = 10 +

Which number is missing, when you have one packet of cakes and one loose cake?

 11 = 10 +

Which number is missing, when you have one packet of cakes and two loose cakes?

 12 = 10 +

Which number is missing, when you have one packet of cakes and one loose cake?

 11 = + 1

Which number is missing, when you have one packet of cakes and nine loose cakes?

 19 = + 9

Which number is missing, when you have one packet of cakes and seven loose cakes?

 17 = 10 +

Which number is missing, when you have one packet of cakes and five loose cakes?

 15 = 10 +

Which number is missing, when you have one packet of cakes and five loose cakes?

 15 = + 5

Which number is missing, when you have one packet of cakes and six loose cakes?

 16 = 10 +

Which number is missing, when you have one packet of cakes and nine loose cakes?

 19 = 10 +
• Question 1

Which number is missing, when you have one packet of cakes and three loose cakes?

 13 = 10 +
3
EDDIE SAYS
13 cakes = 10 cakes plus 3 extra cakes.
• Question 2

Which number is missing, when you have one packet of cakes and one loose cake?

 11 = 10 +
1
EDDIE SAYS
1 packet of 10 cakes = 10 cakes plus 1 extra cake is 11.
• Question 3

Which number is missing, when you have one packet of cakes and two loose cakes?

 12 = 10 +
2
EDDIE SAYS
1 packet of 10 cakes = 10 cakes plus 2 extra cakes is 12.
• Question 4

Which number is missing, when you have one packet of cakes and one loose cake?

 11 = + 1
10
EDDIE SAYS
1 packet of 10 cakes = 10 cakes plus 1 extra cake is 11.
• Question 5

Which number is missing, when you have one packet of cakes and nine loose cakes?

 19 = + 9
10
EDDIE SAYS
1 packet of 10 cakes = 10 cakes plus 9 extra cakes is 19.
• Question 6

Which number is missing, when you have one packet of cakes and seven loose cakes?

 17 = 10 +
7
EDDIE SAYS
1 packet of 10 cakes = 10 cakes plus 7 extra cakes is 17.
• Question 7

Which number is missing, when you have one packet of cakes and five loose cakes?

 15 = 10 +
5
EDDIE SAYS
1 packet of 10 cakes = 10 cakes plus 5 extra cakes is 15.
• Question 8

Which number is missing, when you have one packet of cakes and five loose cakes?

 15 = + 5
10
EDDIE SAYS
1 packet of 10 cakes = 10 cakes plus 5 extra cakes is 15.
• Question 9

Which number is missing, when you have one packet of cakes and six loose cakes?

 16 = 10 +
6
EDDIE SAYS
1 packet of 10 cakes = 10 cakes plus 6 extra cakes is 16.
• Question 10

Which number is missing, when you have one packet of cakes and nine loose cakes?

 19 = 10 +
9
EDDIE SAYS
1 packet of 10 cakes = 10 cakes plus 9 extra cakes is 19.
---- OR ----

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