Exponents
What is 52
25
What is the square of 16?
4
Evaluate the following:
4(4 + 2)
4(4 + 2)
= 4 x 6
= 24
Evaluate the following:
52 - 3(2 + 6)
52 - 3(2 + 6)
= 25 - 3(8)
= 25 - 24
= 1
What is the population of Canada closest to:
a) 35 million
b) 35 thousand
c) 35 billion
a) 35 million
What is 132
169
What is the square root of 81?
9
Evaluate the following:
4 x (4 - 1)
4 x (4 - 1)
= 4 x 3
= 12
Evaluate the following:
2(1 + 3)2
2(1 + 3)2
= 2(4)2
= 2(16)
= 32
Determine the fake statistic in the following:
a) about 7% of Canadians are vegetarian
b) about 85% of Canadians own a car
c) about 110% of Canadians have ridden a bike
c) according a study from 28 countries around the world, about 63% of people worldwide can ride a bike
What is 103
1000
What is the square root of 256?
16
Evaluate the following:
(6 + 1) x (3 + 5)
(6 + 1) x (3 + 5)
= 7 x 8
= 56
Evaluate the following:
100 - 2(3+2)2
100 - 2(3+2)2
= 100 - 2(5)2
= 100 - 2(25)
= 100 - 50
= 50
What percent of students list math as their favourite class:
a) about 5%
b) about 25%
c) about 50%
d) about 80%
b) about 25% listed math on our survey during the first week of school
What is 33
33 = 3 x 3 x 3 = 27
What is the square root of 50 closest to:
a) 25
b) 7
c) 12
b) 7
(50 is between the perfect squares: 49 and 64. Therefore, it is between 7 and 8)
Evaluate the following:
7 + 4(9 - 3) - 1
7 + 4(9 - 3) - 1
= 7 + 4(6) - 1
= 7 + 24 - 1
= 30
Evaluate the following:
(3 x 4 + 20)/23
(3 x 4 + 20)/23
= (12 + 20)/23
= 32/8
= 4
What percent of our students prefer pizza over hamburgers and tacos:
a) about 15%
b) about 30%
c) about 60%
d) about 90%
c) just less than 60% of students prefer pizza (apparently they haven't been to Taco Bell!)
A square has side lengths equal to 15 cm. What is the area of the square?
A = b x h
= 15 cm x 15 cm
= 225 cm2
What is the approximate value of the square root of 70? (no calculators allowed)
acceptable answers are:
8.2, 8.3, 8.4, 8.5
(It is between the perfect squares: 64 and 81. Therefore it has to be between 8 and 9, but is closer to 8)
Evaluate the following:
5(2 + 3(1 + 1))
5(2 + 3(1 +1))
= 5(2 + 3(2))
= 5(2 + 6)
= 40
Evaluate the following:
4[3 x 6 - 2(2 + 1)2 + 1] + 1
4[3 x 6 - 2(2 + 1)2 + 1] + 1
= 4[18 - 2(3)2 + 1] + 1
= 4[18 - 2(9) + 1] + 1
= 4[18 - 18 + 1] + 1
= 4(1) + 1
= 5
As of 2022, which is the most used social media app in the world:
a) Instagram
b) TikTok
c) Snapchat
d) Facebook
d) Facebook
Facebook has twice as many users as Instagram, almost 3 times as many users as Tik Tok, and over 5 times as many users as Snapchat!