Integer Operations
Evaluate:
−8 + 13
5
Find the product:
(−1/3)(−3/5)
1/5
A submarine is 12 m below sea level.
What integer represents its position?
-12
A class raised $185. Another class raised $72.50 more.
How much did the second class raise?
$257.50
Evaluate:
(−2.4 + 0.9) ÷ 0.5
-3
Evaluate:
7 − (−9)
16
Evaluate:
−0.75 + 1.2
0.45
The temperature changes from −6°F to 4°F.
What is the change?
10
At 7 a.m. it was −9°F. By noon it was 6°F.
How many degrees did the temperature rise?
15°F
Evaluate:
3/4 − (−5/8)
1 3/8
Evaluate:
−6(−4)
24
Evaluate:
(−3/4 + 0.25) ÷ (−0.5)
1
The temperature changes from −12°F to 3°F.
What is the change?
15
You have $80. You buy 3 notebooks for $6.75 each.
How much money remains?
$59.75
Evaluate:
−2 + (−3/5)(−5/6)
-1 1/2
Evaluate:
−45 ÷ 9 + 7
2
Write 29/8 as a decimal.
3.625
Point P is at −3. Point Q is 7 units from P.
Give one possible value of Q.
4 or -10
Caramels cost $8.40/lb and chocolate costs $11.60/lb.
How much more do 1.5 lb of chocolate cost than 1.5 lb of caramels?
$4.80
A diver starts at −18 m, rises 7.5 m,
then descends 4.25 m. What is the final position?
−14.75 m
Evaluate:
−18 − 4(−3) + 5
-1
Evaluate:
−1 1/2 + (−3/8)(−4/3)
-1
A bank account is at −$18. A deposit brings it to $7.
How much was deposited?
$25
You have $350.
-A bike costs $214.75
-a helmet costs $38.50
-2 lights cost $9.25 each.
Shirts cost $32 each.
What is the greatest number of shirts you can buy?
2 shirts
A store sells candy for $12.80/lb.
How much do 1 3/4 lb cost?
$22.40