Calculate -3 + 5 Easy
The question
Question: work out −3 + 5.
−3 + 5
1 Add
Start at −3.
Go up 5.
We land on 2.
= 2
So the answer is 2.
Answer
= 2
Integers
Add, subtract, multiply, divide · Foundations · 25 problems, easy to harder
Worked examples
Calculate 4 - (-2) Medium
The question
Question: work out 4 − (−2).
4 − (−2)
1 Take away
Taking away a negative is the same as adding.
− (−) = +
So 4 − (−2) becomes 4 + 2.
= 4 + 2
4 plus 2 is 6.
= 6
So the answer is 6.
Answer
= 6
Calculate -3 - 8 + (-2) - (-10) Harder
The question
Question: work out −3 − 8 + (−2) − (−10).
−3 − 8 + (−2) − (−10)
1 Plus and minus
Plus and minus: we go from left to right.
same kind: left → right
Start at −3.
Go down 8.
We land on −11.
= −11 + (−2) − (−10)
Adding a negative is the same as taking away.
+ (−) = −
So −11 + (−2) becomes −11 − 2.
= −11 − 2 − (−10)
Start at −11.
Go down 2.
We land on −13.
= −13 − (−10)
Taking away a negative is the same as adding.
− (−) = +
So −13 − (−10) becomes −13 + 10.
= −13 + 10
Start at −13.
Go up 10.
We land on −3.
= −3
So the answer is −3.
Answer
= −3
Practice
Try each one, then open the answer. Stuck? Open the problem to watch every step.
Easy
- -3 + 5
Answer
= 2 - 4 - 7
Answer
= −3 - -2 - 6
Answer
= −8 - -9 + 4
Answer
= −5 - 5 + (-8)
Answer
= −3 - -6 + 6
Answer
= 0 - 3 × -4
Answer
= −12 - -20 ÷ 5
Answer
= −4 - -7 × -2
Answer
= 14 - 18 ÷ -3
Answer
= −6
Medium
- 4 - (-2)
Answer
= 6 - -5 - (-9)
Answer
= 4 - -8 - (-3)
Answer
= −5 - -15 + (-5)
Answer
= −20 - -12 + 7 - 4
Answer
= −9 - -3 × 5 × -2
Answer
= 30 - -24 ÷ -6
Answer
= 4 - -2 × -3 × -1
Answer
= −6 - 6 - 10 + 3
Answer
= −1 - -9 ÷ 6
Answer
= −112
Harder
- -3 - 8 + (-2) - (-10)
Answer
= −3 - -6 × 3 ÷ -9
Answer
= 2 - -36 ÷ (-4) ÷ 3
Answer
= 3 - -1 - (-7) + (-11)
Answer
= −5 - -|-8| + 3
Answer
= −5