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Addition and Subtraction Problems Using Mental or Written Methods (1)

In this worksheet, students must solve problems based on addition or subtraction of tangible objects, quantities and measures.

'Addition and Subtraction Problems Using Mental or Written Methods (1)' worksheet

Key stage:  KS 1

Curriculum topic:   Number: Addition and Subtraction

Curriculum subtopic:   Understand Order for Addition/Subtraction

Difficulty level:  

Worksheet Overview

QUESTION 1 of 10

When you ADD, things get bigger, longer or more.

 

Example

Jane has 12 pencils and Bill has 15 pencils.

How many do they have in total?

 

Answer

Add together 12 + 15.

Start at 12 and then add 10 and 5.

12 + 10 = 22

22 + 5 = 27

 

They have 27 pencils in total.

 

 

When you SUBTRACT, things get smaller, shorter, fewer or less.

 

Example

Jane has 27 marbles and gives 15 to her brother Bill.

How many does she have left?

 

Answer

Subtract 27 - 15.

Start at 27 and take away 10 then take away 5.

27 - 10 = 17

17 - 5 = 12

 

Jane has 12 left.

Jake has 6 pens, 10 pencils and 4 rubbers in his pencil case. 

 

How many items does he have in total?

Aisha has read 18 books this summer.

Her brother Ahmed has read 15 books.

 

How many books have they read in total?

Emma has a bag of 25 marbles.

She drops the bag and 13 fall out.

 

How many marbles are left in the bag?

Anna has 22 teddies and gives 15 of them to her brother.

 

How many teddies does Anna have left?

Zak is growing sunflower plants.

One of his plants is 54 cm tall.

It grows 15 cm in one week.

 

How tall is it now in cm?

(just write the number)

Katie and her friends go apple picking.

One weekend they pick 58 apples.

They pick 12 apples on Saturday.

 

How many did they pick on Sunday?

Jack has 24 stamps in his collection.

Jill has 18 stamps in hers.

 

How many more stamps has Jack than Jill?

Bill has 24p in one pocket and 17p in another pocket.

 

How much does he have altogether in pence?

(just write the number)

There are 57 people in a hall. 

12 more people come into the hall.

 

How many people are now in the hall?

There are 49 people on a bus.

16 people get off.

 

How many people are now on the bus?

  • Question 1

Jake has 6 pens, 10 pencils and 4 rubbers in his pencil case. 

 

How many items does he have in total?

CORRECT ANSWER
20
EDDIE SAYS
We add 6 and 10 and 4.

6 + 10 = 16
16 + 4 = 20
  • Question 2

Aisha has read 18 books this summer.

Her brother Ahmed has read 15 books.

 

How many books have they read in total?

CORRECT ANSWER
33
EDDIE SAYS
We add 18 and 15.

18 + 10 = 28
28 + 5 = 33
  • Question 3

Emma has a bag of 25 marbles.

She drops the bag and 13 fall out.

 

How many marbles are left in the bag?

CORRECT ANSWER
12
EDDIE SAYS
We subtract 25 - 13.

25 - 10 = 15
15 - 3 = 12
  • Question 4

Anna has 22 teddies and gives 15 of them to her brother.

 

How many teddies does Anna have left?

CORRECT ANSWER
7
EDDIE SAYS
We subtract 22 - 15.

22 - 10 = 12
12 - 5 = 7
  • Question 5

Zak is growing sunflower plants.

One of his plants is 54 cm tall.

It grows 15 cm in one week.

 

How tall is it now in cm?

(just write the number)

CORRECT ANSWER
69
EDDIE SAYS
We add 54 and 15.

54 + 10 = 64
64 + 5 = 69
  • Question 6

Katie and her friends go apple picking.

One weekend they pick 58 apples.

They pick 12 apples on Saturday.

 

How many did they pick on Sunday?

CORRECT ANSWER
46
EDDIE SAYS
We subtract 58 - 12.

58 - 10 = 48
48 - 2 = 46
  • Question 7

Jack has 24 stamps in his collection.

Jill has 18 stamps in hers.

 

How many more stamps has Jack than Jill?

CORRECT ANSWER
6
EDDIE SAYS
We subtract 24 - 18.

24 - 10 = 14
14 - 8 = 6
  • Question 8

Bill has 24p in one pocket and 17p in another pocket.

 

How much does he have altogether in pence?

(just write the number)

CORRECT ANSWER
41
EDDIE SAYS
We add 24 and 17.

24 + 10 = 34
34 + 7 = 41
  • Question 9

There are 57 people in a hall. 

12 more people come into the hall.

 

How many people are now in the hall?

CORRECT ANSWER
69
EDDIE SAYS
We add 57 and 12.

57 + 10 = 67
67 + 2 = 69
  • Question 10

There are 49 people on a bus.

16 people get off.

 

How many people are now on the bus?

CORRECT ANSWER
33
EDDIE SAYS
We subtract 49 - 16.

49 - 10 = 39
39 - 6 = 33
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