Get Ratio-ed
Wait, what time is it?
Adding/Subtracting with decimals
Order of Operations
Variables
100
If a recipe calls for 3 cups of flour and 2 cups of sugar, what is the ratio of flour to sugar in the recipe?
3:2
100
The time is currently 12:00am. What time will it be in 10 hours?
10:00am
100
2.05
+ 1.55
3.60 or 3.6
100
What is the acronym (abbreviated words, using first letter of each word) we learned to remember what order our operations are done
P.E.M.D.A.S.
(), 43, 5x5, 6÷2, 3+1, 9-7
Parentheses, Exponent, Multiplication/Division (same step, go left to right), Addition/Subtraction (same step, go left to right)
100
The sum of a number z and 7 is 15. What is the value of z?
Z + 7 = 15
8
200
There are 10 boys and 20 girls in. Set up a ratio of boys to girls in the class.
1:2
10/20 = 1/2
(magic zero!)
200
What time is portrayed on the clock if it is almost dinner time?
4:25pm
200
16.000 - 15.001
.999 or 0.999
200
4+3×6
22
200
6m = 120 .. What does m equal?
20
(120/6 = 20)
300
In a bag of marbles, the ratio of red marbles to blue marbles is 2:3. If there are 10 red marbles, how many blue marbles are there
15 blue marbles
2x5 = 10 (red)
so
3x5 = 15 (blue)
300
When I wake up for school in the morning, the hour hand is between 5 and 6, and the minute hand is facing straight down.. What time is it?
5:30am
300
12.45 - 10.46
1.99
(12.45-10.45 = 2.00, then take away one more from your hundredths place)
300
5×(4+2)−3
27
300
Mary had x stickers. She gave away 8 stickers and now has 15 stickers left. How many stickers did Mary have originally?
23
(x - 8 = 15)
400
A map has a scale of 1 inch represents 10 miles. If two cities are 4 inches apart on the map, how many miles apart are they in reality?
40 miles
1in : 10mi
therefore
4in : 40mi
400
My cousins are coming to town! I am so excited to see them, but I was told I have to wait 48 hours until they arrive.
My mom told me at 6:00pm on Tuesday. What day and time of day will my cousins get here?
6:00pm on Thursday
(24 hours in 1 day: 48 hours in 2 days)
400
$25.50 + $25.05 + $25.31
$75.86
(always helps to set up your problem vertically to keep your place values
400
43 ÷ 8 = ?
8
43= 4x4x4 = 16x4 = 64
64 ÷ 8 = 8
400
9 students wanted to evenly split Dr. H's jolly ranchers. He had 54 JR's left to give out. How many did each student receive?
6
(54/9 = # of JRs)
500
A mixture of nuts contains almonds, cashews, and peanuts in a ratio of 2:3:4. If the mixture weighs 180 ounces, how many ounces of cashews are there?
60oz (ounces)
180/3 = 60
or
180/9 = 20
20 x 3 = 60
500
I arrived at work at 7:00am.. I worked for 5 hours, then I took a 1 hour lunch. I worked for 4.5 more hours after lunch. What time will I leave work?
5:30pm
500
100.00 - 35.2 - 21.800000000
43.0
500
18 ÷ (3+1) × 2
9
18 ÷ 4 x 2 (M/D same step, go left to right)
18 ÷ 4 = 4.5
4.5 x 2 = 9
500
There are some students in a class. If 9 students join the class, the total number of students becomes 28. How many students were originally in the class?
19
(?+9 = 28)
(28-9 = ?)