WorksheetsAddition and Subtraction Relation
Total questions: 13
Worksheet time: 8mins
Ball: 13c
Marcus has 20c.
How much change does he need?
20c - 13c = 7c
13c - 20c = 7c
20c + 13c = 33c
13c + 20c = 33c
Box of chocolate: 21c
Faith has 30c.
How much change does he need?
30c + 21c = 51c
21c - 30c = 9c
30c - 21c = 9c
21c + 30c = 51c
What is the method to 'undo' an operation called?
updo
addition
subtraction
inverse
Why do we use the inverse?
To waste time
To check our answer
Because the teacher told us so
Because we are working with money
Alice goes to buy a pair of shoes. After she buys the shoes she will have:
less money in her purse
more money in her purse
When we are doing addition
the number gets smaller
the number gets bigger
Choose the correct calculations using these numbers: 8, 12, 4
8 + 4 = 12 and 12 - 8 = 4
8 - 4 = 12 and 12 + 8 = 4
The inverse of an addition question like this
12 + 3 = 15,
is:
multiplication
addition
division
subtraction
The inverse of a subtraction question like this
12 - 3 = 9,
is:
multiplication
addition
division
subtraction
16 + 4 = ____ and ____ - 4 = 16
10
20
16
4
5 + 9 = ____ and 14 - 9 = ____
14 and 5
5 and 9
14 and 9
5 and 10
BONUS:
The inverse of a multiplication question like this
10 X 2 = 20,
is:
multiplication
addition
division
subtraction
When we are doing subtraction
the number gets smaller
the number gets bigger
