Number (add/sub)

Hong Kong

Stage 1

$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

b

How many pigeons are still in the park?

Easy

1min

Goose's Gags and Gifts wanted to work out how much stock they had after a day of sales.

They started the day with $38$38 gags and $22$22 gifts, and sold a combined total of $23$23 gags and gifts over the course of the day.

Easy

1min

It is Irene's birthday, and she blows up $8$8 balloons. If she gives $1$1 to her younger brother, and accidentally lets go of $2$2 of them, how many balloons does she have left?

Easy

< 1min

When Dylan arrives at his local sports centre, he finds that there are $32$32 tennis balls, $3$3 basket balls and $4$4 soccer balls available for him to make use of.

How many balls are available in total?

Easy

< 1min

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