5. lesson 4 subtraction of whole numbers
TRANSCRIPT
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BY JOHN ROME R. ARANAS
SUBTRACTION OF WHOLE NUMBERS
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What is Subtraction?
Subtraction simply means taking one number away
from another.
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Parts of Subtraction Equation¿5,890
¿−1,9523,938
Difference – the an-swer in subtraction equation
Minus – subtrac-tion symbol
Minuend – the number to be sub-tracted from
Subtrahend – the number that is to be sub-tracted
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How to Solve?• 937 – 161= N
¿ 937¿−161776
3) Repeat the process to the last digits to be subtracted.
13STEPS1) Start subtracting from the ONES digits2) If number in the MINUEND is LOWER than the SUBTRA-HEND, “borrow 1” from the next number at the left.
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Try These!
7,294−4,903=𝑁
700,284−65,820=𝑁
933,592,049−27,492,004=𝑁
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Word ProblemsFor subtraction:Difference RemainsFewer SubtractHow many more ChangeHow much more Decreased byLeft SavedLess/ less than Total cost/ TotalMinus Take away
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ExampleAshlee regularly attends to her 120-minute daily dance rehearsals. If 35 minutes was allotted for warm-up and for fixing self, how much time left for the actual practice?
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ESA Method
E: 120−35=𝑁S: 120−3585
1010
A: 85 minutes
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ExampleThe original price of the dress was 4,827 pesos. However, Chezberg was able to buy it at a discounted price of 2,999 pesos. How much she was able to save?
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ESA Method
E: 4,827−2,999=𝑁S: 4,827
−2,9991,828
1717
A: 1,828 pesos
11173
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Try this!Luigi brought with him 3,482 packs of biscuits. Throughout the day, he was able to give away 2,837 packs to the indigent people. How many packs of biscuits left?
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ESA Method
E: S:
A: