Math 7 Sem 1 Review Made by 7-1

Unit 1

100

Is a number divisible by 0?

No

200

What is the numerical coefficient of the following expression? 3+7x

7

300

Let input = x, output = y, and y = 5x. What is the output when the input is 6?

30

400

There is an interesting machine that receives an integer input and returns an integer output. When the input is 5, the output is 21. What is the (linear) mathematical relationship between the input and the output?

The output is 4 times the input added by 1.

500

A velocity-time Cartesian plane shows a discrete data. When velocity refers to v and time refers to t, the relation is: v = 2t. What is the distance the object has moved when 6 seconds have passed?

36m

Unit 2

100

Write an integer to represent a situation: Jei Jang wrote a cheque of $40.

-40

200

In the expression 3x5, if 3 is the counter, what do we call 5 as?

Multiplier

300

Explain the zero property.

Any number multiplied by 0 is 0.

400

Fill in the blank: Dividing is splitting into equal parts and can be also called a ____ _________.

Fair sharing

500

(no calculator) Solve: [(-1,283,167)-(-76, 867)]x3/5-(61+73-17+9-3)

-723,903

Unit 3

100

2/3 + 9/12

17/12

200

(9+12)x(1/12)-(3/4)

1

300

3/8 + 6.25

6.625

400

Joon bought a Hawaiian pizza. He ate 2 slices of the 8 slices. Juwon came and ate 2/9 of the leftovers. Then Jake ate half of the leftover after Joon and Juwon ate. How much of the pizza is left? 

7/24

500

(no calculator) [(0.53 + 3/4)x5/8] + [0.3 + (7/8)(3.1)]

4.4425

Unit 4

100

What is the definition of radius?

A straight line from the centre of the circle to any point on the circle.

200

What is the formula of the area of trapezoid?

(b₁+b₂)h/2

300

What is the area of the circle with a radius of 12.75? Round to the nearest hundredth.

510.71unit²

400

If the circumference of the circle with a radius of 3.35 and the perimeter of a square are equal, what is the side length of the square? Round to the nearest hundredths. 

5.26 units

500

There is a rectangle, 13 units by 11 units. Inside the rectangle, there are some holes: a semi-circle with diameter of 3.5, a triangle with base 3.5 and height 4.1, a trapezoid with two bases of 2.2 and 8.7 and height 3.2, and a rhombus with diagonals of 7.8 and 4.3. What is the area of the rectangle? Round to the nearest hundredths. 

75.36unit²

Random

100

What country is Mr. Skelton from?

USA

200

When is Ms. Kim's birth month?

April

300

What homeroom is Olivia's brother in?

9-1

400

What is Jayden's Korean name?

Hyunseo

500

What is Ms. Kim's favourite Starbucks drink?

Caramel macchiato