Operations with fractions and decimals

True/False

100

The denominator needs to be the same to add fractions.

Trues

200

Negative x Positive = Positive

False

300

-4 x 7 = -21

False

400

To find the reciprocal, flip the fraction.

True.

Operations with Negative Numbers

100

-20 ➗ 4

-5

200

-10 x (-6)

60

300

DOUBLE POINTS:

-75 ➗ 15 

-5

400

360 ➗ (-10)

-36

Operations with Decimals

100

0.25 + 0.25

0.5 or 0.50

200

1.24 + 0.32 

1.56

300

1.25 - 0.75 

0.5 

400

3.2 x 0.3 

0.96

Operations with Fractions

100

A baker needs 10 kg of flour for cupcakes. He mixed 1/2 of the flour in the first batch. How much flour did he mix? 

5 kg

200

1/2 + 3/4 

5/4 or 1 1/4 

300

Alicia wants to eat 1/3 of the pizza and Jared wants to eat 1/2 of the pizza. How many whole pizza's do they need to order?

5/6 pieces are eaten. They will buy one whole pizza.

400

2/3 of the flowers in the garden are yellow. 1/2 of the yellow flowers are tulips. What fraction of the garden are yellow AND tulips? 

2/6 

1/3