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Adjusting Addition / Subtracion By Rebeca Muñoz

Adjusting Addition / Subtracion By Rebeca Muñoz San Millan. How can you do this addition?. 571. 35. Using a number line…. Which number do we use first ? Why ?. Counting and adjusting….

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Adjusting Addition / Subtracion By Rebeca Muñoz

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  1. Adjusting Addition / Subtracion By RebecaMuñoz San Millan

  2. How can you do this addition? 571 35 Using a number line…

  3. Whichnumber do we use first? Why? Counting and adjusting… Whatisthenearest ten that can help me? Whatnumber do weendon? +30 +5 571 601 606 571 35

  4. Try this: 800 + 87 = (800 + 90) - 3 = 890 - 3 = 607 We need a volunteer to draw the number line!

  5. Whichnumber do we use first? Why? subtraction… Whatisthenearest ten that can help me? Whatnumber do weendon? -30 -5 571 576 606 606 35

  6. Now solve these: a) 583 – 71 756 – 11 234 – 199 b) 645 + 63 572 + 19 5932 + 299 c) 584 – 97 600 - 401 368 - 199 d) 126 + 88 154 + 99 500 - 200

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