Adding Fractions
Subtracting Fractions
Adding Decimals
Subtracting Decimals
Math Rules
100

Write the following as a mixed number:

-5 1/3 + 8 2/3

What is 3 1/3

100

Write the following as a mixed number:

(-8 1/2) - 4

What is -12 1/2

100

-13.4 + 8.6

What is -4.8

100

-3.7 - 14.9

What is -18.6

100

(1) What is the sign of the sum of 2 negative numbers? 

(2) What is the sign of the sum of 2 positive numbers?

What is (1) Negative and (2) Positive

200

Write the following as a mixed number:

4 5/6 + (-1 2/3)

What is 3 1/6

200

Write the following as a mixed number:

7 3/8 - (-2 1/8)

What is 9 1/2

200

7.51 + 22.08

What is 29.59

200

22.43 - 4.07

What is 18.36

200

(Double Jeopardy!!!!) 

How do you know what sign will be used for the sum of a negative and a positive number?

The answer will have the same sign as the number with the greatest absolute value.

300

Write the following as a mixed number:

-18 7/9 + 7 4/9

What is -11 1/3

300

Write the following as a mixed number:

-26 2/5 - ( -11 1/5)

What is -15 1/5

300

-41.90 + 22

What is -19.90

300

-81.36 - 41.93

What is -123.29

300

Give one of the 2 phrases we use in math to remind us how to change a subtraction sentence into an addition sentence.

What is "Add the Opposite" or "Keep, Change, Flip"

400

Find the sum.

3 1/4 + 7 3/4

What is 11

400

Write the following as a mixed number:

14 1/7 - ( -3 3/14)

243/14 or 17 5/14

400

117.4 + 8.93

126.33

400

7.85 - ( -31.03)

What is 38.88

400

What has to be done before you can add or subtract fractions?

What is make the denominators the same

500

Write the following as a mixed number:

-12 7/8 + (-2 1/2)

What is - 15 3/8

500

Write the following as a mixed number:

-5 3/6 - ( -10 2/3)

What is 5 1/6

500

-328.17 + 63.40

What is -264.77

500

206.14 - 131.78

What is 74.36

500

What has to be done before you can add or subtract decimals?

What is line up the decimal point (and the place values)

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