Math Bowl Practice

Find the value of  3 x (9 + 2)

• 29

• 33

• 34

• 68

Answer explanation

B.  33

3 x (9 + 2)

3 x 11

33

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

Cooper runs a lap in 90 seconds. If he ran 4 laps, how many minutes will it take him?

• 2 minutes

• 3 minutes

• 4 minutes

• 6 minutes

Answer explanation

D.  6 minutes

90(4) = 360 seconds 360/60 = 6 minutes

Tags

CCSS.3.MD.A.1

There are 12 rectangles of chocolate on a Hershey’s Bar. If each person eats 5 rectangles, how many people can be served from 8 Hershey’s bars?

• 7.5 people

• 3 people

• 19 people

• 8 people

Answer explanation

C.  19 people

8(12) = 96 rectangles in 8 Hershey bars

96 / 5 = 19 remainder 1

Tags

CCSS.7.EE.B.3

A flea that is 1/8 of an inch tall can jump 9 1/8 inches high. If a person who is six feet tall had the ability to jump like a flea, how high could they jump?

• 438 feet

• 180 yards

• 460 feet

• 488 feet

Answer explanation

A. 438 feet

The flea jumps 73 times its height because there are 73 eighths in 9 1/8 inches. 73 times 6 feet is 438 feet. This reasoning is easier than doing proportions with mixed numbers.

Tags

CCSS.6.RP.A.3B

The ratio of dogs to cats in the pet parade is 5:3. How many dogs are there if there are 32 pets in the pet parade?

• 20 dogs

• 12 dogs

• 22 dogs

• 11 dogs

Answer explanation

Since there are more dogs than cats, we really only need to check the answers 20 and 22 as answers.

20/12 simplifies to 5/3.

22/10 simplifies to 11/5 which is not 5/3

We could also write a proportion using x for the number of dogs and 32‐x as the number of cats.

In a group of 50 students, 10 students passed both the math and science exams. 28 students passed the science exam only. How many students passed the math exam only?

• 12 students

• 22 students

• 32 students

• 17 students

Answer explanation

28 passed only science

10 passed science and math These 2 groups have no overlap so a total of 38 passed science.

That leaves 50‐38 or 12 students to pass math only

Tags

CCSS.HSA.CED.A.3

A jar contains $10.75 in dimes and quarters. If the number of dimes is four more than twice the number of quarters, determine the number of quarters.

• 23 quarters

• 24 quarters

• 25 quarters

• 26 quarters

Answer explanation

Let x = number of quarters

4 + 2x = number of dimes

25x + 10(4 + 2x) = 1075

25x + 40 + 20x = 1075

45x + 40 = 1035

45x = 1035

x = 23

Tags

CCSS.8.EE.C.8C

Farmer Brown has chickens and cows on his farm. There are 30 total animals. There are 74 legs in all. How many cows does he have?

• 4 cows

• 5 cows

• 6 cows

• 7 cows

Answer explanation

Let x = number of cows

Let 30 – x = number of chickens

Cows have 4 legs, chickens have 2 legs each

4x + 2(30 – x) = 74

4x + 60 – 2x = 74

2x + 60 = 74

2x = 14

x = 7

Tags

CCSS.8.EE.C.8C

Find the sum of five and 6.2 and ½.

• 6.7

• 11.2

• 11.7

• 11 3/12

Answer explanation

5 +6.2 + 0.5 = 11.7

Tags

CCSS.5.NBT.B.7

Trista reads 16 books every month. If this continues, how many books will she read in 3 years?

• 480 books

• 36 books

• 576 books

• 48 books

Answer explanation

12 months per year times 16 books per month times 3 years = 576

Mrs. Keating's kind of student!!

Tags

CCSS.3.OA.A.3