Quiz: Math Challenge


Math ChallengeOnline version Mid-level math quiz by Фатима Жолшы 1 1+2 a 3 b 2 c 1 d 0 2 5÷5 a 1 b 0 c 9 d 4 3 3-1 a 3 b 2 c 1 d 0 4 What is the solution to 2x + 5 = 17? a x = 6 b x = 7 c x = 8 d x = 5 5 If a triangle has angles 35° and 75°, what is the third angle? a 80° b 60° c 70° d 75° 6 What is the area of a rectangle 8 by 3? a 24 b 21 c 27 d 11 7 Solve for y: 3y − 4 = 2y + 9 a y = 1 b y = 5 c y = -13 d y = 13 8 What is 25% of 240? a 75 b 50 c 60 d 45 9 The slope of a line through (0,2) and (4,6) is? a 1 b 2 c -1 d 0.5 10 If a circle has radius 5, what is its area? (π≈3.14) a 31.4 b 78.5 c 125.6 d 50 11 Simplify: 8x² ÷ 4x a x²/2 b 4x² c 8x d 2x 12 What is the Pythagorean triple that fits a 3-4-5 triangle? a 5 is the hypotenuse b There is no hypotenuse in this triple c 3 is the hypotenuse d 4 is the hypotenuse 13 Evaluate: (2/3) + (4/9) a 8/9 b 10/9 c 14/9 d 2/3 Feedback 4 Subtract 5 from both sides to get 2x = 12, then divide by 2: x = 6. 5 Sum of angles in a triangle is 180°. 180 - (35+75) = 70. 6 Area = length × width = 8 × 3 = 24. 7 Subtract 2y both sides: y − 4 = 9; add 4: y = 13. 8 0.25 × 240 = 60. 9 Slope = (6−2)/(4−0) = 4/4 = 1. 10 Area = πr² ≈ 3.14×25 = 78.5. 11 Cancel 4x: (8x²)/(4x) = 2x. 12 In a 3-4-5 triangle, 5 is the hypotenuse. 13 Convert to ninths: 6/9 + 4/9 = 10/9.

1

1+2

a

3

b

2

c

1

d

0

2

5÷5

a

1

b

0

c

9

d

4

3

3-1

a

3

b

2

c

1

d

0

4

What is the solution to 2x + 5 = 17?

a

x = 6

b

x = 7

c

x = 8

d

x = 5

5

If a triangle has angles 35° and 75°, what is the third angle?

a

80°

b

60°

c

70°

d

75°

6

What is the area of a rectangle 8 by 3?

a

24

b

21

c

27

d

11

7

Solve for y: 3y − 4 = 2y + 9

a

y = 1

b

y = 5

c

y = -13

d

y = 13

8

What is 25% of 240?

a

75

b

50

c

60

d

45

9

The slope of a line through (0,2) and (4,6) is?

a

1

b

2

c

-1

d

0.5

10

If a circle has radius 5, what is its area? (π≈3.14)

a

31.4

b

78.5

c

125.6

d

50

11

Simplify: 8x² ÷ 4x

a

x²/2

b

4x²

c

8x

d

2x

12

What is the Pythagorean triple that fits a 3-4-5 triangle?

a

5 is the hypotenuse

b

There is no hypotenuse in this triple

c

3 is the hypotenuse

d

4 is the hypotenuse

13

Evaluate: (2/3) + (4/9)

a

8/9

b

10/9

c

14/9

d

2/3

Feedback

4

Subtract 5 from both sides to get 2x = 12, then divide by 2: x = 6.

5

Sum of angles in a triangle is 180°. 180 - (35+75) = 70.

6

Area = length × width = 8 × 3 = 24.

7

Subtract 2y both sides: y − 4 = 9; add 4: y = 13.

8

0.25 × 240 = 60.

9

Slope = (6−2)/(4−0) = 4/4 = 1.

10

Area = πr² ≈ 3.14×25 = 78.5.

11

Cancel 4x: (8x²)/(4x) = 2x.

12

In a 3-4-5 triangle, 5 is the hypotenuse.

13

Convert to ninths: 6/9 + 4/9 = 10/9.

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Math Challenge

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Math ChallengeOnline version

by Фатима Жолшы

1+2

5÷5

3-1

What is the solution to 2x + 5 = 17?

If a triangle has angles 35° and 75°, what is the third angle?

What is the area of a rectangle 8 by 3?

Solve for y: 3y − 4 = 2y + 9

What is 25% of 240?

The slope of a line through (0,2) and (4,6) is?

If a circle has radius 5, what is its area? (π≈3.14)

Simplify: 8x² ÷ 4x

What is the Pythagorean triple that fits a 3-4-5 triangle?

Evaluate: (2/3) + (4/9)

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