7th Grade Module 4: Add and Subtract Rational Numbers

Vocab

100

Distance from zero (turning something into a positive)

absolute value, mixed number, improper number, rational number, integer

absolute value

200

whole number (negative or positive)

absolute value, mixed number, improper number, rational number, integer

Integer

300

A whole number with a fraction

(Example: 3 2/3) 

absolute value, mixed number, improper number, rational number, integer

Mixed Number

400

Bigger number is on top in a fraction. 

(Example: 19/4)

absolute value, mixed number, improper number, rational number, integer

improper number

500

Any number that is a whole number, fraction, or decimal

absolute value, mixed number, improper number, rational number, integer

rational number

Sums and Differences of Integers

100

-800-200=

-1000

200

-100-300=

-400

300

-50+40=

-10

400

-23 - (-5)

-23 + 5

=-18

500

-42 + (-6)

-42-6

= -48

Sums and Differences Rational Numbers

100

4.5-(-10.75)=

=15.25 

200

-2.5+5+4.25=

=6.75

300

-5 3/4 + (-3.28)=

= -9.03

400

1/4  -  (-1/6)=

= 5/12 

500

-1 1/2 - (-1/8)=

=-1 3/8

or -1.375

Multi-Step Addition/Subtraction

100

-15 -2.75-1.7+2.4=

= -17.05

200

2.6-3.7+1.5=

= .4

300

-12 2/5 + 8 9/10=

(change 2/5 to .4)

= -3.5

400

1 2/3 + 3 3/4 + 2 1/4=

=7 2/3

500

-2/5 -4 1/10 -10.53=

= -15.03

Election Trivia

100

How old do you have to be to vote in USA?

21, 18, 23, 12

18

200

What do you need before you can vote?

ticket, breakfast, register to vote

register to vote

300

What is absentee voting?

voting before election day, not voting at all, voting by mail because you can't go in person

voting by mail because you can't go in person

400

How long is a President's term in office?

1 year, 2 years, 3 years, 4 years, 5 years

4 years

500

How many terms can a president serve?

1 term, 2 terms, 3 terms, 4 terms

2 Terms