Level 2 (free flow)
Which of the following numbers are a zero pair?
a. 6,7
b. 4,1
c. 81 , -81
d. 3, 3
c. (positive 81 and negative 81 equal 0)
A pack of 12 granola bars costs $9.60.
What is the cost per granola bar?
$9.60 ÷ 12 = $0.80 per bar
Miss Jacklovich grabs coffee for the team.
Small: 12 oz for $2.40
Medium: 20 oz for $3.60
Large: 32 oz for $5.60
Which size has the cheapest cost per ounce?
Small: $2.40 ÷ 12 oz = $0.20/oz
Medium: $3.60 ÷ 20 oz = $0.18/oz
Large: $5.60 ÷ 32 oz = $0.175/oz
Large is the cheapest per ounce
10 + (-4) =
6
Do these ratios form a proportion, why or why not?
12:32 and 72: 224
not a proportion
(-18, 0, -19, -2, 9 19)
(-19, -18, -2, 0, 9, 19)
A car travels 228 miles in 4 hours.
How many miles per hour is the car traveling?
228 ÷ 4 = 57 miles per hour
Miss Jacklovich buys cookies for her advisory.
Bag A: 18 cookies for $7.20
Bag B: 30 cookies for $11.70
Bag C: 42 cookies for $17.64
Which bag is the best deal per cookie?
Bag A: $7.20 ÷ 18 = $0.40/cookie
Bag B: $11.70 ÷ 30 = $0.39/cookie
Bag C: $17.64 ÷ 42 = $0.42/cookie
Bag B is the best deal per cookie
2 - (-4) =
6
Do these ratios form a proportion?
14:98 = 5.6:39.2
Yes divided both by 2.5
Is the value of ----4 postive or negative
positive
A recipe uses 6 cups of flour to make 24 cookies.
How many cups of flour are used per cookie?
6 ÷ 24 = 0.25 cups per cookie
Miss Jacklovich orders paper for the math department.
Pack 1: 250 sheets for $6.25
Pack 2: 500 sheets for $11.00
Pack 3: 1,000 sheets for $22.50
Which pack costs the least per sheet?
Printer Paper
Pack 1: $6.25 ÷ 250 = $0.025/sheet
Pack 2: $11.00 ÷ 500 = $0.022/sheet
Pack 3: $22.50 ÷ 1,000 = $0.0225/sheet
Pack 2 is the cheapest per shee
-9 + (-3) =
-12
Do these ratios form a proportion?
32:58 = 8:7.25
no not proportional
Is the value of ---7 positive or negative
negative
A babysitter earns $54 for 6 hours of work.
How much does the babysitter earn per hour?
54 ÷ 6 = $9 per hour
Miss Jacklovich buys water bottles for the basketball team.
Case A: 12 bottles (16 oz each) for $7.20
Case B: 24 bottles (20 oz each) for $14.40
Case C: 32 bottles (24 oz each) for $21.76
Which case has the lowest cost per ounce?
Case A: 12 × 16 = 192 oz → $7.20 ÷ 192 = $0.0375/oz
Case B: 24 × 20 = 480 oz → $14.40 ÷ 480 = $0.03/oz
Case C: 32 × 24 = 768 oz → $21.76 ÷ 768 = $0.0283/oz
✅ Case C is the cheapest per ounce
-5 - (-1) =
-4
Do these ratios form a proportion? 4:7 = 16:21
no
write 4 equivalent ratios to 3:8
30:80
15:40
1.5/ 4
printing shop can print 7,200 flyers in 6 hours using 4 printers running at the same speed.
How many flyers can 1 printer print in 1 hour?
7,200÷6=1,200 flyers/hour (all printers together)
Flyers per hour per printer:
1,200÷4=300 flyers/hour per printer
Miss Jacklovich buys dry erase markers.
Pack A: 4 markers for $6.80
Pack B: 8 markers for $12.00
Pack C: 12 markers for $19.20
Which pack is the cheapest cost per marker?
Markers for Class 🖊️
Pack A: $6.80 ÷ 4 = $1.70/marker
Pack B: $12.00 ÷ 8 = $1.50/marker
Pack C: $19.20 ÷ 12 = $1.60/marker
Pack B is the cheapest per marker
-3 + 6 =
3
Do these ratios form a proportion?
10:22 = 5.5:11
no