Name of Lecturer: Mr. J.Agius
Course: FCES
LESSON 2
2.1 Addition of Integers
Adding to make 10 and 100
In this exercise we are going to find the missing number to add to 10 or to 100.
Example 1.
Complete the following
44 +
Answer. Clearly the answer must be 44 +
= 100
56
Example 2:
Write the pair to make 100 for 75
Answer.
75 + 25 = 100
Learning Outcome 1 – Numerical Calculations
= 100
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Name of Lecturer: Mr. J.Agius
Learning Outcome 1 – Numerical Calculations
Course: FCES
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Name of Lecturer: Mr. J.Agius
Learning Outcome 1 – Numerical Calculations
Course: FCES
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Name of Lecturer: Mr. J.Agius
Course: FCES
1.
Gary saves 13c and is given another 42c. How much has he altogether?
2.
Anna buys a comic for 23c and a pen for 45c. How much does she spend
altogether?
3.
Jen has 35c more than Safa who has 24c. How much does Jen have?
4.
Smarties cost 27c, a bar of dairy milk is 23c more expensive. How much is a bar of
dairy milk?
5.
Two rolls of tape are 35 cm and 41 cm long. What is their total length?
6.
An egg weighs 35 grams, a potato weighs 23 grams more. How much does a potato
weigh?
7.
A bottle of coke holds 42 millilitres and a bottle of orange holds 35 millilitres. How
much liquid do both bottles hold?
8.
Chloe travelled for 13km, she continued and travelled for a further 26km. How far
did she travel?
9.
A bag of potatoes weighs 32kg and a bag of onions weighs 25kg. What is their total
weight?
10.
I swam for 35 minutes and had a break. I then continued to swim for another 16
minutes. How long did I swim for?
Learning Outcome 1 – Numerical Calculations
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Name of Lecturer: Mr. J.Agius
Course: FCES
2.2 Subtraction of Integers
Learning Outcome 1 – Numerical Calculations
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Name of Lecturer: Mr. J.Agius
Course: FCES
1.
Gary has 45c, but lost 22c. How much has he left?
2.
Toni had 76c, then bought an ice cream for 35c. How much has she left?
3.
Patrick has 67c left after buying a comic which cost 22c. How much did he have
before he bought the comic?
4.
Kate has 49c, she needs 98c to buy felt tips. How much more money does she need
to buy them?
5.
One roll of tape is 56 cm long, 31 cm of tape is used. How much tape is left?
6.
An potato weighs 35 grams, an egg weighs 13 grams less. How much does an egg
weigh?
7.
A bottle of coke holds 42 milliliters and a bottle of orange holds 35 milliliters. How
much more liquid does the bottle of coke hold?
8.
Chloe travelled for 33km, she needs to travel 60 km to complete her journey. How
far does she still need to travel?
9.
The bus is taking 48 children home. At the first stop, 13 children get off. How many
are left?
10.
I swam for 35 minutes and had a break. I wanted to swim for 50 minutes. How
much longer do I have to swim for?
Learning Outcome 1 – Numerical Calculations
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Name of Lecturer: Mr. J.Agius
Course: FCES
2.3 Mixed Addition and Subtraction of Integers
You purchase a toy drum and a ball.
1. You hand the cashier seven dollars.
What will your change be?
answer: ______________
You purchase two robots.
2. You hand the cashier a twenty dollar bill.
What will your change be?
answer: ______________
You purchase a toy train and a plastic duck.
3. You hand the cashier a ten dollar bill.
What will your change be?
answer: ______________
You purchase a both toys that have wheels.
4. You hand the cashier a ten dollar bill.
What will your change be?
answer: ______________
You purchase three piggy banks.
5. You hand the cashier a five dollar bill.
What will your change be?
answer: ______________
Learning Outcome 1 – Numerical Calculations
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Name of Lecturer: Mr. J.Agius
Course: FCES
6.
What is the total of 38 and 11?
7.
Find the difference between 53 and 22.
8.
I have €38 and spend €23 on a jumper. How much money do I have left?
9.
I buy a skirt for €33 and a jacket for €46. How much money have I spent altogether?
10. Find the total of 38 and 62 the total of 38 and 62.
11. How many more than 40 is 78?
12.
We sold 46 bags of crisps on Wednesday and we sold 40 more on Thursday. How
many crisps did we sell on Thursday?
13. A jacket costing €89 was reduced by €35 in the sale. How much does it cost now?
14. Find the sum of 78 and 14.
There are 70 people sat down on a train and 19 stood up. How many people are on
the train?
It is 48 km to Birmingham. I have already travelled 22km. How many more km to I
16.
have to travel?
15.
Learning Outcome 1 – Numerical Calculations
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