review for quarter 2 test 1
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Review for Quarter 2 Test 1. XII. Reading & Writing Decimals XIII. Rounding Decimals XIV. Comparing & Ordering Decimals XV. Adding & Subtracting Decimals w/Checkbooks XVI . Mental Math with Decimals. - PowerPoint PPT PresentationTRANSCRIPT
REVIEW FOR QUARTER 2
TEST 1 XII. Reading & Writing Decimals
XIII. Rounding DecimalsXIV. Comparing & Ordering DecimalsXV. Adding & Subtracting Decimals
w/CheckbooksXVI. Mental Math with Decimals
ORDER THE DECIMALS FROM LEAST TO GREATEST.
1) 2.346, 2.4, 2.436, 2.36, 2.432) 5.67, 5.6, 5.76, 5.585, 5.7
Answers: 1) 2.346, 2.36, 2.4, 2.43, 2.436
2) 5.585, 5.6, 5.67, 5.7, 5.76
WRITE IN EXPANDED NOTATION:1) 34.09372) 708.2054
Answers: 1) 30 + 4 + .09 + .003 + .00072) 700 + 8 + .2 + .005 + .0004
WRITE IN STANDARD FORM:
1) 500 + 4+ .03 + .002 + .00006
2) 40 + 1 + .9 + .008 + .00007
Answers: 1) 504.032062) 41.90807
WRITE IN STANDARD FORM:
1) FIFTY-SEVEN AND FOUR HUNDRED SIXTY-TWO TEN-
THOUSANDTHS
2) SIX THOUSAND TWO HUNDRED THREE HUNDRED-
THOUSANDTHS
Answers: 1) 57.04622) .06203
WRITE IN WORDS: 1) 7.452912) .00603
Answers: 1) seven and forty-five thousand two hundred ninety-one
hundred-thousandths2) six hundred three hundred-
thousandths
COMPARE. USE <, > OR =.
1) 5.6324 ____ 5.982) 7.89 ____ .7893) .386 _____ .44) .68 _____ .68000000000
Answers: 1) < 2) > 3) < 4) =
ROUND TO THE INDICATED PLACE-VALUE.1) 6.32 (TENTHS)2) 34.1157 (THOUSANDTHS)3) $42.98 (DOLLAR)4) $1.397 (CENT)5) 5.2987 (HUNDREDTHS)
Answers: 1) 6.3 2) 34.116 3) $434) $1.40 5) 5.30
TOM BOUGHT A COAT FOR $197.50, A SUIT FOR $265.95 AND A SHIRT FOR $53.75. HOW MUCH DID HE SPEND?
Answer: $517.20
PAULA HAD A BALANCE OF $4,287.95 IN HER CHECKBOOK. SHE WITHDREW $50 FROM THE ATM. HER PAYCHECK FOR $672.38 WAS DIRECTLY DEPOSITED INTO HER CHECKING ACCOUNT. WHAT WAS HER NEW BALANCE AFTER THESE TWO TRANSACTIONS?
Answer: $4,910.33
MULTIPLY OR DIVIDE MENTALLY.
1) 56.28 X100 = 2) 3.6 ÷10 = 3) .39 X1000 = 4) 23 ÷ 100 = 5) .123 X100 = 6) 89 ÷ 1000 =
Answers: 1) 5,628 2) .36 3) 390 4) .23 5) 12.3 6) .089
WRITE THE MISSING NUMBER.1) 23.3 ÷ ________ = .0233 2) 5.4 × ______ = 540 3) _________ ÷ 100 = .3424) ________ × 1000 = 740
Answers: 1) 1000 2) 100 3) 34.2 4) .74
THE MINUEND IS 47.9 AND THE SUBTRAHEND IS 32.578. FIND
THE DIFFERENCE.
Answer: 15.322
SUPER DUPER CHALLENGE: THE SUM OF TWO NUMBERS IS 89.478 AND THE DIFFERENCE IS 15.778. FIND
THE TWO NUMBERS. Here is a suggestion on how to solve it:Divide both the sum and the difference by
2. You should have two quotients--44.739 and 7.889. Find the difference of the two quotients (which is 36.85). Then find the sum of the two quotients (which is 52.628). And there are the two numbers! 36.85 and 52.628. Pretty cool, right?
(A question like this is NOT on the test!)