7.ns.1
A submarine was situated 450 feet below sea level. If it descends 300 feet, what is its new position?
750 feet below sea level
What is the product of -1 ½ and 5.32 ?
-7.98
The temperature at midnight was -5º F. By noon it rose 45º. By 10:00 pm, the temperature had dropped a drastic 60º. What was the temperature at 10:00 pm?
-20ºF
What does "OF" mean in math?
Multiply
How many times can you subtract 5 from 100?
Once, then it's 95
Bucky opened a new checking account with a deposit of $95.49. He spent $25.47 at the pet store, $45.50 at the gas station, and $22.19 at the grocery store. He wants to go out to a restaurant for dinner which will cost $19.90. Does Bucky have enough money in his checking account?
No, he only has $2.33 in his account.
Simplify
(-2)3 - (-5 - 6) + (2 - 8)2
-8 - (-11) + 36
-8 + 11 + 36 = 39
Natalie had $730.49 in her saving account on Monday. On Tuesday, she withdrew $75.12, and then deposited $123.45 on Wednesday. What is her new balance in her account?
$778.82
To find the "DISTANCE" between two numbers?
Subtract
Chris, Rob, Amy and Melissa went on a ski trip. On Friday, when they hit the slopes in the morning the temperature was 12.5°F. When they finally called it quits that evening, the temperature had dropped to -3.5°F. What was the change in temperature?
decreased 16°F
Find the product of -3.1, 2¾, and ½.
-4.2625
Maya is drinking her favorite juice. There are 2.75 servings remaining in the bottle. Maya pours only 0.25 of a serving into her glass at a time. How many glasses can Maya have before the bottle is empty?
11.0 glasses
To share equally or split into parts?
DIVIDE
Rewrite the problem below as an equivalent addition expression and evaluate.
2.5 - (-7)
2.5+ 7= 9.5
Shane's bird feeder holds 4 ⅕ cups of birdseed. Shane is filling the bird feeder with a scoop that holds ⅗ of a cup. How many scoops of birdseed will Shane put into the feeder?
7 scoops
In a classroom, ⅘ of the students like math. Of those who like math, ⅗ like science. What fraction of the students in the classroom like science?
12/25
What operation?
$100 and each person gets $4
50 people are donating and each person gives $10
DIVIDE
MULTIPLY
Jessica started her own dog sitting business. The first week, she earned $22.00 and spent $7.27 on dog treats and toys. The second week, she earned $38.50 and spent $9.99 on dog food. How much did she earn? How much did she spend?
Earned $60.50, Spent $17.26
Given –a x –b = ab Solve if a = -3 and b= 4
-12
Anna has been working on improving her running time for the upcoming competition. Her time started out at 8 minutes and 32 seconds. She improved her time by 18 seconds. The next time she ran, she improved by another 22 seconds. Finally, at the competition Anna got her best time when she improved by an additional 9 seconds! What is Anna’s best running time?
HINT: to improve how does your time change?
7 minutes; 43 seconds
EARN
SPEND
ADD
SUBTRACT