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Adding and Subtracting Decimals

Adding and Subtracting Decimals. الجمع والطرح من الكسور العشرية. Key Terms. Words that mean “add” or “addition”: Combine Together Plus Total Sum (rhymes with “some” and “from”). Words that mean “subtraction”: Difference “how much more” “how much less” Minus. Adding Decimals.

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Adding and Subtracting Decimals

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  1. Adding and Subtracting Decimals الجمع والطرح من الكسور العشرية

  2. Key Terms Words that mean “add” or “addition”: Combine Together Plus Total Sum (rhymes with “some” and “from”) Words that mean “subtraction”: Difference “how much more” “how much less” Minus

  3. Adding Decimals • Put the larger number on top. • Line up the decimal points and add the columns from right to left. • Place a decimal point in the answer directly below the other decimal points. ﻋﻤﻮد column

  4. Subtracting Decimals • Put the larger number on top. • Line up the decimal points and subtract the columns from right to left. • Place a decimal point in the answer directly below the other decimal points.

  5. How many Dirhams?! If Hamad has 30.64 AED and Nasser has 25.39AED, how much more does Hamad have than Nasser? • Line-up the decimal points. • 30.64 • - 25.39 • __________________________ If Hamad has 30.64 AED and Nasser has 25.39AED, how much do they have combined? • Line-up the decimal points. 30.64 + 25.39 __________________________ Hamad and Nasser have 56.03 AED combined. Hamad has 5.25AED more than Nasser.

  6. Example 1 0.86 – 0.49 1) Line up the decimal points 0.86 - 0.49 __________________________ 2) Subtract the columns. 16 7 _________ ﻋﻤﻮد column

  7. Practice 2) Practice ___________ ___________ 1) 3) 4) ___________ ___________

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