addition and subtraction with integers
-10 + (-25)
-35
-10 x 2
-20
(1-2) x (-3 + 4)
-1
2.5 x 2.2
5.5
A baby weighed 7.5 lbs at birth. At the end of 6 months, the baby weighed 2 times as much as its birth weight. How many pounds did the baby weigh at the end of 6 months?
15 lbs
-25 + 25
0
-30 x -3
90
(2 + -5) x 4
-12
4.25 x 5.5
23.375
A grocery store sells coffee for $2.50 per pound. What would be the cost of 2 1/4 lbs of coffee?
Round to the nearest cent.
(1,2,3 & 4 round down)
(5,6,7,8 & 9 round up)
$5.63
-26 + 36
10
-12 x 5
-60
(-3)2 + (-5)
-11
3 2/5
x
2.6
8.84
Reggie is the quarter back for his football team. On Friday, Reggie gained 7 yards on the first play. Then, he lost 3 yards. On the third pay he gained 10 yards, and then he lost 7. What was the total change in Reggie's position?
7 yards
25 - (-5)
30
-40 / 8
-5
15 + 5 x -7
-20
2.52 divided by 0.14
18
A brownie recipe requires 2/3 cups of milk. Troy wants to make 1/2 of the brownie recipe. How many cups of milk will he need?
1/3 cups of milk
-10 - (-10)
0
-25 / - 5
5
16 + (-7) + (-12) x 2
-15
31.2 divided by 0.12
260
A baker put 3.825 teaspoons of food coloring into cupcakes. She used 0.15 teaspoons of food coloring for each dozen.
How many dozen cupcakes did the baker make?
25.5