🔢 Number Operations
Which decimal is greater?
3.45 or 3.405
3.45
A shopper buys:
How much did they spend?
$72
The Lazy River is shaped like a rectangle.
Length = 12 ft
Width = 8 ft
What is the perimeter?
12 + 12 + 8 + 8 = 40 ft
Which 3D shape has 6 square faces?
Cube
Order these decimals from least to greatest.
0.8 , 0.18 , 0.81
0.18, 0.8, 0.81
Order from least to greatest:
0.62 , 0.206 , 0.26 , 0.602
0.206 , 0.26 , 0.602 , 0.62
A camper has $125.
They buy:
How much money is left?
$47 + $36 = $83
$125 − $83 = $42
The Splash Zone is a rectangle.
What is the area?
13 × 7 = 91 square feet
A rectangular prism has how many faces and how many vertices?
A student says:
"A sphere has 1 face, 0 edges, and 0 vertices."
What is the student's mistake?
A sphere has no flat faces, no edges, and no vertices.
Order these from greatest to least.
2.35
2.053
2.5
2.305
2.5 , 2.35 , 2.305 , 2.053
A team has $95.
They want to buy:
Do they have enough money? If so, how much money will they have left?
$32 + $28 + $19 = $79
$95 − $79 = $16
✅ Yes, they have enough and will have $16 left.
The Wave Pool has an area of 108 square feet.
One side is 9 feet long.
What is the length of the missing side?
108 ÷ 9 = 12 feet
Which 3D shape has:
Cylinder
A student has $65 to buy school supplies.
They buy:
Do they have enough money? If so, how much is left?
28 + 9 + 14 = 51
65 − 51 = $14 left
A team collected 8 bundles of bamboo. Each bundle had 7 pieces. Later, they found 15 more pieces.
They need 75 pieces to build a raft.
Do they have enough bamboo? If not, how many more pieces do they need?
8 × 7 = 56
56 + 15 = 71
75 − 71 = 4
No, they do not have enough. They need 4 more pieces.
A team has $50.
They need to buy 4 flashlights that cost $8 each and 1 first aid kit for $15.
Do they have enough money? If not, how much more do they need?
4 × $8 = $32
$32 + $15 = $47
Yes! They have enough.
They will have $3 left.
The Kiddie Pool is a rectangle.
Part A: Find the area.
Part B: Find the perimeter.
Part A) Area: 15 x 11 =165 square feet
Part B) Perimeter: 15+15+11+11= 52 feet
A student says:
"A cone has 2 faces, 1 edge, and 1 vertex."
Question: What is the student's mistake?
The cone has:
A splash pad is 14 ft long and 9 ft wide.
Find the area and the perimeter.
A team needs 84 pieces of wood to finish a raft.
They collect:
A student wrote:
They have enough pieces of wood.
Question:
Is the student correct? Explain your reasoning.
No.
The total is 73, but 73 is still less than 84.
The team needs 11 more pieces.
A team has $60.
They need:
A student wrote:
They do not have enough money.
Question:
Is the student correct? Explain and determine whether the team has enough money.
They spend $44, which is less than $60.
They do have enough money and will have $16 left.
A water slide platform has:
A student wrote:
Area = 126 square feet
Perimeter = 126 feet
Question:
Which answer is correct? Which answer is incorrect? Explain.
✅ Area = 126 square feet is correct.
❌ Perimeter is not 126 feet.
Perimeter = 14 + 14 + 9 + 9 = 46 feet.
Three clues:
What 3D shape am I?
Square Pyramid
Which statements are incorrect? Correct them.
1. ❌ Incorrect
2. ✅ Correct
3. ❌ Incorrect