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Published byBerenice Banks Modified over 6 years ago

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Adding and Subtracting Decimals By Miss Setchell

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Review of Decimal Place Value 0.2 3 4 Tenths Hundredths Thousandths

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Practice Hundredths 0.7 9 8

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Practice 0.1 0 6 Thousandths

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0.1 0 6 Practice Tenths

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Review of Adding Whole Numbers 182 +376 27 +86 3,984 +2,827 3 58 1 5,11 1 11 681 1 1

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Review of Subtracting Whole Numbers 456 - 188 95 - 26 9,237 - 5,338 68 9 2,96 112 389 11843 1 1 8 1

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Adding Decimals 2.7 +8.6 311 1. 1.82 +3.76 585 1. 3.984 +2.827 1. 1 681 1 1

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Subtracting Decimals 9.5 - 2.6 96 18. 4.56 - 1.88 682 143 1. 9.237 - 5.338 9. 2 389 11 1 8 1

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Adding and Subtracting Money $1.82 +$3.76 585 1. $ - When you add or subtract money, can your answer have more than 2 decimal places? No. So, when you add and subtract decimals, your answer should never have more decimal places than any of the numbers in the problem.

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For Example: 2.56 + 9.02 = Whatever the answer turns out to be, we know that it will only have two decimal places because that is the most amount of decimal places in each number.

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For Example: 2.569 + 9.021 = Whatever the answer turns out to be, we know that it will have exactly three decimal places because that is the most amount of decimal places in each number.

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For Example: 9.02 + 2.457 = Whatever the answer turns out to be, we know that it will have three decimal places because that is the most amount of decimal places in each number.

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Practice: 8.4 +0.8 29 1. 1.70 +6.83 538 1. 8.028 +1.938 6. 1 996

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Practice: 7.0 - 3.9 13 16. 9.73 - 0.87 868 168 1. 7.763 - 6.027 6. 5 173 1

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