Mental Math (10 minutes) Grade 5 Mental Math (10 minutes ...

[Pages:2]Mental Math (10 minutes) ? Grade 5

1. Fill in the blank: 8 x 9 x 10 x 11 = 80 x ___

Answers Score

1.

2. What is the seventh multiple of 5?

2.

3.

Baby Aurora is one year and 8 months old. How many months old is Baby Aurora?

3.

4.

Spencer Hawes is 5 feet and 25 inches high. How tall, in inches, is this NBA player?

4.

5. Solve: 8 ? 1 ? (18 ? 2) ? 8

5

If 3 apricots weigh the same as 1 peach, how

6. many apricots will it take to balance 8

6.

peaches?

7.

What is the greatest common factor of 12 and 8?

7.

8.

Alan has 4 dollars and 75 cents in quarters. How many quarters does Alan have?

8.

9.

If one-fourth of my secret number is 12, what is 3 times my secret number?

9.

10. Solve: 11 ? 29

10.

11.

What is the least common multiple of 12 and 10?

11.

Philipp left the house walking his dog at 6:12 12. a.m. and returned at 7:48 a.m. How long, in 12.

minutes, did he walk the dog?

13.

Robert ran 45 miles in 5 hours. What was his average speed in miles per hour?

13.

14.

Find the mode of the following numbers: 2, 10, 3, 11, 2, 14, 2, 3

14.

Nick drew a regular polygon with a perimeter

15.

of 180 cm. If each side of the polygon is 30 cm long, how many sides does the polygon

15.

have?

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Mental Math (10 minutes) ? Grade 5

16.

How many factors does a prime number have?

16.

17. What is half of half of half of 24?

17.

18.

If 555,555,555 is multiplied by 2, how many zeroes will be at the end?

18.

19.

What is the difference between twice of eighteen and half of eighteen?

19.

20.

How many lines of symmetry can be drawn in a regular triangle?

20.

21. Solve: 7 ? 9 ? 7 ? 3 ? 5 =

21.

Which number leaves the greatest remainder

22. when divide by 5?

22.

653 354 876 887

Lia drank half cup of juice from a pint bottle.

23. How much ounces of juice is left in the

23.

bottle?

Which of these fractions is the closest to 10?

24.

51 48 97

24.

6 59

Glacier Peak 10,500 ft. high is retreating at a

25.

constant rate of 1000 feet a year. How many years will it take the glacier to retreat to 5

25.

hundred feet?

26.

The Century Link field's area is 6,360 sq. yds. Its length is 120 yds. How wide is it in yards?

26.

27.

If a pyramid has 4 faces and 4 vertices. What polygon is at the base?

27.

28.

If you flipped a fair quarter 24 times, how many times would you expect to get heads?

28.

29.

What is the median of the counting numbers less than 30?

29.

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Mental Math (10 minutes) ? Grade 5

A fair 6-sided die has Seahawks colors: 2

30.

faces are blue, 2 faces are green, and the rest is gray. You roll it once. What is the

30.

probability that you get blue?

In 2015, June had the highest temperature of 31. 930 F, the lowest of 610 F. What was the range 31.

of the temperature in June?

32. What is 5 to the power of 4?

32.

33.

What is the area as a fraction in sq. inches of a square whose perimeter is 2 inches?

33.

4 kids were standing at Snoqualmie Ice

34. Cream shop. In how many ways could they 34.

stand in that line?

Seattle's Best Coffee K-Cups costs $7.99 per

35. pack of 10. How much, in cents, will one K-cup 35.

cost, if you round to the closest cent?

36.

How

many

minutes

are

in

3

1 5

hours?

36.

Larissa correctly computes the product of

37.

seven 3's, bud smudges the last digit of her answer. What number was being smudged?

37.

3 x 3 x 3 x 3 x 3 x 3 x 3 = 2,18

The letters SPACE NEEDLE were put in a box.

38. What is the probability to blindly take out "E" 38.

from a first try?

39. How many edges does a cube have?

39.

40.

If each parking lot can hold 6 cars, how many total cars can 12 parking lots hold?

40.

TOTAL SCORE

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Mental Math (10 minutes) ? Grade 5

MATH CHALLENGE TOURNAMENT 2015 GRADE 5 - MENTAL MATH

Sponsored By Ellipsis Academy

FINAL SCORE:

Name: _______________________________________

School: ____________________________

Mental Math Challenge (10 minutes)

You may not do any written work and only your final answers may be written.

Any erasure or cross-out will result in the answer being marked wrong.

Write your answers in this test booklet. Units are not necessary. If you choose to label your answer,

please make sure you write the correct units. A correct answer with incorrect units will be marked as an incorrect answer. Correct answer: 1 point Blank answer: 0 point Incorrect answer: 0 point

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