Adding & Subtracting Rational Numbers

Adding Fractions

100

-5 1/3 + 8 2/3

What is 3 1/3

200

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

What is 3 1/6

300

-8 7/9 + 7 4/9

What is -1 1/3

400

3 1/4 + 7 3/4

What is 11

500

-10 7/8 + -2 1/2

What is - 13 3/8

Adding Decimals

100

-13.4 + -8.6

What is -22

200

-7.51 + -22.08

What is -29.59

300

-41.90 + 22

What is -19.90

400

117.4 + (-8.93)

What is 108.47

500

- 328.17 + 63.4

What is -264.77

Adding integers

100

-4 + (-6)

What is -10

200

18 + (-18)

What is 0

300

6 +9 + (-6)

What is 9

400

-19 + 26 + 14

What is 21

500

Write two integers with different signs that add up to -17

What is multiple answers

Math Rules

100

Part 1 - what is the sign of the sum of 2 negative numbers? Part 2 - what is the sign of the sum of 2 positive numbers?

What is Part 1 - negative Part 2 - positive

200

How can you know what sign will be 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

What does SSADSS stand for?

What is same sign add, different sign subtract

400

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

What is make the denominators the same

500

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

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

Absolute value

100

What is l-3l?

What is 3

200

What is -l-3l?

What is -3

300

What is absolute value?

What is the distance a number is from zero

400

Order from least to greatest; -12, l-26l, l-15l, l-12l, l10l

What is -12, l10l, l-12l, l-15l, l-26l

500

True or false? If x < 0, then lxl = -x

What is false