6th Grade Math

Surprise Me

100

Find the LCM: 6 and 4

6, 12 4, 8, 12 Answer: 12

200

Find the GCD: 12 and 20

12: 1, 2, 3, 4, 6, 12 20: 1, 2, 4, 5, 10, 20 Answer: 4

300

Solve: -23 - (-24)

-23 - (-24) --> -23 + 24 --> Answer: 1

400

Name 3 sports that Mr. V does.

Martial arts

Basketball

Skateboarding

500

What is the difference between vegan and vegetarian?

vegan=no animal products/food

vegetarian= no animal flesh/meat

Add/Subtract Fractions

100

1/8 + 5/8

Denominators match. Add numerators. 6/8 Simplify. Answer: 3/4

200

3/5 - 2/5

Denominators match. Subtract numerators. 1/5 Answer: 1/5

300

1/2 + 5/16

Find LCD: 2, 4, 6, 8, 10, 12, 14, 16 16 1/2 --> 8/16 8/16 + 5/16 Answer: 13/16

400

3/6 - 4/9

Find LCD: 6, 12, 18 9, 18 3/6 --> 9/18; 4/9 --> 8/18 9/18 - 8/18 Answer: 1/18

500

3/8 + 1/4 + 2/10

Find LCD: 4, 8, 16, 20, 24, 28, 32, 36, 40 8, 16, 24, 32, 40 10, 20, 30, 40 15/40 + 10/40 + 8/40 Answer: 33/40

Add/Subtract Mixed Numbers

100

6 and 2/5 + 1 and 4/5

Same denominators. 2/5 + 4/5 = 6/5 = 1 and 1/5 6 + 1 + 1 and 1/5 Answer: 8 and 1/5

200

6 and 2/5 + 1 and 4/10

Find LCD: 10 4/10 + 4/10 = 8/10 = 4/5 6 + 1 + 4/5 Answer: 7 and 4/5

300

6 and 1/2 + 4 and 5/6

Find LCD: 6 3/6 + 5/6 = 8/6 = 1 and 2/6 = 1 and 1/3 6 + 4 + 1 + 1/3 Answer: 11 and 1/3

400

7 and 2/3 - 1 and 1/6

Find LCD: 6 4/6 - 1/6 = 3/6 = 1/2 7 - 1 = 6 Answer: 6 and 1/2

500

15 - 3 and 3/4

Borrow from 15 --> 4/4 4/4 - 3/4 = 1/4 14 - 3 = 11 Answer: 11 and 1/4

Multiply Fractions/Mixed Numbers

100

1/2 x 2/3

1 x 2 = 2 2 x 3 = 6 2/6 Simplify. Answer: 1/3

200

9/10 x 2/3

9 x 2 = 18 10 x 3 = 30 18/30 Simplify --> 18/6 = 3 30/6 =5 Answer: 3/5

300

3 and 1/3 x 1 and 1/4

Change to improper fractions: 10/3 x 5/4 10 x 5 = 50 3 x 4 = 12 50/12 = 25/6 Answer: 4 and 1/6

400

2 and 1/2 x 1 and 3/5

Change to improper fractions: 5/2 x 8/5 5 x 8 = 40 2 x 5 = 10 40/10 Answer: 4

500

What is three fourths of ten?

Three fourths = 3/4 Ten = 10 = 10/1 3/4 x 10/1 3 x 10 = 30 4 x 1 = 4 30/4 = 15/2 Answer: 7 and 1/2

Divide Fractions/Mixed Numbers

100

1/8 / 3/5

Flip the second fraction --> 5/3 Multiply: 1/8 x 5/3 1 x 5 = 5 8 x 3 = 24 Answer: 5/24

200

5/9 / 5/6

Flip the second fraction --> 6/5 Multiply: 5/9 x 6/5 5 x 6 = 30 9 x 5 = 45 30/45 Simplify Answer: 2/3

300

3 and 1/7 / 11/7

Change to improper fraction --> 22/7 Flip second fraction --> 7/11 Multiply: 22/7 x 7/11 22 x 7 = 154 7 x 11 = 77 Simplify: 154 / 7 = 22 77 / 7 = 11 --> 22/11 Answer: 2

400

12 and 1/2 / 1 and 7/8

Change to improper fractions: 25/2 / 15/7 Flip second fraction --> 7/15 Multiply: 25/2 x 7/15 25 x 7 = 175 2 x 15 = 30 Simplify: 175 / 5 = 35 30 / 5 = 6 --> 35/6 Answer: 6 and 2/3

500

4/5 / 1/10

Flip the second fraction --> 10/1 Multiply: 4/5 x 10/1 4 x 10 = 40 5 x 1 = 5 Simplify: 40/5 Answer: 8