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PRACTICE: Addition and subtraction

Interactive practice questions

$28+19+12$28+19+12

a

Which story matches the number sentence?

Bill has $28$28 marbles, his friend Tom gives him $12$12 marbles, and Bill then gives $19$19 marbles to Sally.

A

There are $28$28 people working in a supermarket, $19$19 people leave the supermarket over the next hour and $12$12 people enter.

B

There are $28$28 pigeons in a park, $19$19 more pigeons fly in to the park, and then after an hour, another $12$12 fly in.

C
b

How many pigeons are in the park?

Easy
1min

Find the value of $80041+9900$80041+9900.

Medium
< 1min

Which of the following patterns is increasing by $6$6?

Easy
< 1min

A retail store has sold $761$761 of their shirts over the last $9$9 months and is expected to sell $22$22 shirts in the next month, $67$67 shirts in the following month and $35$35 shirts in the month after that. 

If the store meets their expected sales in the next three months, how many shirts will they have sold over the last year?

Medium
2min
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Outcomes

VCMNA209

Select and apply efficient mental and written strategies and appropriate digital technologies to solve problems involving all four operations with whole numbers and make estimates for these computations

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