GCF and LCM

Adding Rational Numbers

Subtracting Rational Numbers

Multiplying Rational Numbers

Dividing Rational Numbers

100

Find the GCF of 86 and 90 using SLED.

What is 2?

100

3.15 + 2.25

What is 5.40?

100

8/11 - 3/11

What is 5/11 ?

100

5(1/3)

What is 1 and 2/3 ?

100

1/4 divided by 3/8

What is 2/3?

200

Find the GCF and LCM of 112 and 24 using SLED.

What is a GCF of 8 and an LCM of 336?

200

0.38 + (-1.2)

What is -0.82?

200

- 4/13 - 8/13

What is -12/13 ?

200

-3.2 x 5

What is -16?

200

-20 divided by 0.5

What is -40?

300

The choir teacher has 48 girls and 64 boys in the choir. They plan to arrange the students in equal rows. Only Girls or boys will be in each row. What is the greatest number of students that could be in each row?

What is 16?

300

9/25 + (-17/25)

What is -8/25?

300

-0.06 - (-0.86)

What is 0.8 ?

300

-1/6 (-2/3)

What is 1/9?

300

-15 divided by -5/8

What is 24?

400

At a display booth at an amusement park, every visitor gets a gift bag. Some of the bags have items in them shown below.

Item Bags

Hat Every 2nd visitor

T-shirt Every 7th visitor

Backpack Every 10th visitor

How often will a bag contain all three items?

What is 70?

400

-5/12 + 1/12

What is -1/3?

400

-10/24 - (-2/24)

What is -1/3 ?

400

Evaluate 2/3 * x for x = -6

What is -4 ?

400

Emma bought 2 and 1/2 yards of cording for the trim around the edge of a square pillow. How much will she use for each side of the pillow?

What is 5/8 yard?

500

Bridget has swimming lessons every fifth day and diving lessons every third day. If she had a swimming lesson and a diving lesson on May 5th, when will be the next date on which she has both swimming and diving lessons?

What is 15?

500

To make a small amount of play dough, you can mix 1 cup of flour, 1/2 cup of salt and 1/2 cup of water. What is the total amount of ingredients added to make the play dough?

What is 2 cups?

500

The snowfall in Rochester, NY in the winter of 1999-2000 was 91.5 inches. Normal snowfall is about 76 inches per winter. How much more snow fell in the winter of 1999-2000 than is normal?

What is 15.5 inches?

500

Travis painted for 6 and 2/3 hours. He received $27 an hour for his work. How much was Travis paid for doing this painting job?

What is $180?

500

Sean has a loan of $8804.46 including interest. He makes payments of $209.63 each month on the simple interest loan. How many months will it take for Sean to repay his loan?

What is 42 months?

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