Maths Vocab
What do you call the line from the centre of a circle to its edge?
radius
A straight line is split into three angles: 45°, 72°, and angle m. What is m?
180 − 45 − 72 = 63°
Write as an expression.
15 less than the product of 3 and f
3f - 15
A shape is made of two rectangles. One is 5 cm × 2 cm and the other is 3 cm × 4 cm. What is the total area?
10 + 12 = 22 cm²
Find the sum of 5.234 and 25.9.
31.134
Which word means an angle inside a shape?
Internal angle
Two vertically opposite angles are formed. One is 84°. What are all four angles?
84°, 96°, 84°, 96°
Simplify.
12 + (35 + 2x)
47 + 2x
Jamie has $4. If each slice of pizza at the Pizza Shack costs 1.25 and Jamie buys two slices, how much money will she have left?
$1.50
What is the value of 312 ÷ .2?
1560
What do you call a four-sided shape with one pair of parallel sides?
Trapezium
An isosceles triangle has a base angle of 55°. What is the top angle?
180 − 55 − 55 = 70°
The train needs 15 workers to run. Each train car, c, can fit 40 people. Write an expression for the number of people that can fit on the train.
15 + 40c
A business has 32.76 cups of soil. Each pot needs 1.2 cups of soil. How many full pots can the business make?
27 pots (.3 cups doesn't make a full pot)
Solve:
5.67+234
239.67
What is a four-sided shape with both pairs of opposite sides parallel?
Parallelogram
A regular pentagon has interior angles that sum to 540°. What is each interior angle?
540 ÷ 5 = 108°
Simplify this expression: 4(2x + 5) + 3(4x) - 7
20x + 13
Saul has 48 toy cars, 60 stuffed animals, and 108 toy figures. He wants to split the toys up and make identical toy bins with some of each type of toy. What is the largest number of bins he can make? How many of each type of toy will be in each bin?
12 bins
4 toy cars
5 stuffed animals
9 toy figures
Solve:
52+3x5x0.12
25.42
The fold line that divides a shape into two matching halves.
Line of Symmetry
A triangle has angles 2x, 50°, and 70°. What is x?
2x + 50 + 70 = 180, 2x = 60, x = 30°
Solve.
(14−2)^2
_______
3⋅4^2
3
The expression 30c + 45d represents the cost of daily pet care for c cats and d dogs.
a.) How much does it cost for daily care for 8 cats and 3 dogs?
b.) How much does it cost for pet care for the work week?
a.) 30(8) + 45(3)
240 + 135
$375
b.) 375 x 5 = $1875
A regular octagon is split into triangles from one vertex. How many triangles are formed and what is the sum of interior angles?
6 triangles. 6 × 180 = 1,080°