Everything or nothing
“Oh no! This square takes points away—no question needed.”
–100 points
Formula for area of a triangle
What is Area = (base x height) / 2?
Formula for area of a rectangle
What is Area = base x height?
“A trapezoid has bases of 4 ft and 6 ft, and a height of 5 ft.
What is the area of the trapezoid?”
25 ft2
What is 7×8
56
“Answer this mystery question correctly to gain points… get it wrong and lose the same amount.”
“Name the shape and find the area.
Base = 8 units, Height = 5 units, Formula: base × height ÷ 2”
Shape: Triangle
Area: 20 square units
Area of a triangle with a base of 8cm and a height of 4cm
What is 16cm2?
Area of a rectangle with a base of 4cm and a height of 2cm
What is 8cm2?
Formula for the area of a trapezoid
What is Area = (base1 + base2) x height / 2 ?
Divide 144÷12
12
“Congratulations! You get free points just for picking this question.”
+300
Area of a triangle with a height of 40cm and a base of 10cm
What is 200cm2?
Area of a rectangle with a base of 5m and a height of 9m
What is 45m2?
“A trapezoid has bases of 7 cm and 13 cm and a height of 6 cm.
What is the area of the trapezoid?”
60 cm2
Sofia buys 3.5 meters of ribbon. Each meter costs $2.40. How much does she spend?
Step: Multiply 3.5 × 2.40= 8.40
“I am a shape with only one pair of parallel sides. My area is found using the average of my bases times the height.
What shape am I, and what is the formula for my area?”
Shape: Trapezoid
Formula: A=(b1+b2)×h/2 =
Area of a triangle with a base of 8 mm and a height of 5 mm
What is 20 mm2?
Area of a rectangle with a length of 1.1mm and a width of 2mm
What is 2.2mm2?
Area of a trapezoid with a top base of 6m, a bottom base of 10m, and a height of 3m
What is 24m2?
Emma had $50.00. She buys a notebook for $12.75, a pen set for $8.40, and a backpack for $23.60. How much money does she have left?
Total spent: 12.75 + 8.40 + 23.60 = 44.75
Money left: 50.00 – 44.75 = 5.25
Answer: $5.25
“This is something your teacher reminds you of almost every math class.
It is not the answer, but without it, your work is incomplete.
What is it?”
Showing your work
Height of a triangle if the area is 10cm2 and the base is 4cm
What is 5cm2?
Base of a rectangle with a Height of 5cm and an area of 30cm2
What is 6cm?
Area of a trapezoid with a top base of 6mm, a bottom base of 8mm, and a height of 0.4mm
What is 2.8mm2?
Liam buys 2.75 kg of apples at $3.20 per kg and 1.5 kg of oranges at $2.40 per kg. How much does he spend in total?
Apples: 2.75 × 3.20 = 8.80
Oranges: 1.5 × 2.40 = 3.60
Total: 8.80 + 3.60 = 12.40
Answer: $12.40