topic badge

Solve problems involving addition and subtraction

Interactive practice questions

Adam arrives to a meeting $5$5 minutes early, and he leaves as soon as the meeting ends, $50$50 minutes after he got there.

a

Which of the following expressions could we use to calculate the length of the meeting?

$5-50$550

A

$-5-50$550

B

$-5+50$5+50

C

$5+50$5+50

D

$5-50$550

A

$-5-50$550

B

$-5+50$5+50

C

$5+50$5+50

D
b

How long did the meeting go for?

Easy
Approx a minute
Sign up to try all questions

A submarine is $58$58 m below sea level, and it descends $13$13 m.

How far below sea level is it?

Amelia and James are players on a game show. Amelia has $60$60 points and James has $-80$80 points. How many more points than James does Amelia have?

The planet Athas experiences drastic changes in temperature over the course of the day. On one day it reached a minimum temperature of$-270$270°F, but then warmed up to a maximum temperature of $-140$140°F.

What was the temperature change that day?

What is Mathspace

About Mathspace