Addition and Subtraction

$10+34-30$10+34−30

a

Which story matches the number sentence?

Bill has $10$10 marbles, his friend Tom gives him $30$30 marbles, and Bill then gives $34$34 marbles to Sally.

A

There are $10$10 pigeons in a park, $34$34 more pigeons fly in to the park, and then $30$30 fly away.

B

There are $10$10 people working in a supermarket, $34$34 people leave the supermarket over the next hour and $30$30 people enter.

C

Bill has $10$10 marbles, his friend Tom gives him $30$30 marbles, and Bill then gives $34$34 marbles to Sally.

A

There are $10$10 pigeons in a park, $34$34 more pigeons fly in to the park, and then $30$30 fly away.

B

There are $10$10 people working in a supermarket, $34$34 people leave the supermarket over the next hour and $30$30 people enter.

C

b

How many pigeons are still in the park?

Easy

Approx a minute

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Use a range of additive and simple multiplicative strategies with whole numbers, fractions, decimals, and percentages.

Record and interpret additive and simple multiplicative strategies, using words, diagrams, and symbols, with an understanding of equality