COMPARING AND ORDERING RATIONAL/INTEGER RULES REVIEW.

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Presentation transcript:

COMPARING AND ORDERING RATIONAL/INTEGER RULES REVIEW

Test Answers  1.D  2.A  3.C  4.B  5.3/10  6.30%  7.¾    %  11.C  12.B  13.D  14.B  15.B   17.B  18.B  19.D  20.C    23.C  24.G  25.C  Bonus: ¼

Comparing Numbers on a Number Line  Numbers get larger as you move to the right on the number line.  Numbers get smaller as you move to the left on the number line.

Order the following from least to greatest.  ½  -3/8   7/8  1.25  -1 1/8

Place the following on the number line below:  ½  -3/8   7/8  1.25  -1 1/8

Adding Integers Same signs … _____ Different signs… _____ Bigger team ….______ + + RULES

Review: Adding Integers   

Two Pencil Marks -8 – Dry erase boards

Gretchen bought a sweater for $ In addition, she had to pay $1.43 in sales tax. She gave the sales clerk $30. EXPLAIN how to find the change Gretchen received from her total purchase. Do not solve. Add the cost and the tax. Subtract the answer from 30.

x for x= So what is the rule for adding and subtracting decimals? Different signs subtract Bigger team wins--positive

_ 3 + _ Same signs add and keep -4 =

_ 8 _ Two pencil marks Same signs add and keep =

-7.5 – (-3.01) = Y -7.5 – (-3.01) = Y Two pencil mark Different signs subtract Bigger team wins

Ana worked 6 ½ hr on Monday, 5 ¾ hr on Tuesday and 7 1 / 6 hr on Friday. How many total hours did she work these three days? = = = =