5. A school has 425 girls, 413 boys and 34 teachers. How many students and teachers are in the school? Process: Est. Actual 7. Paul had 178 marbles. He gave away 23, then he gave away 47 more. How many marbles does Paul have? Process: + - Est. Actual

Q: The answer is not shown for the 2

A: Left end sum=sum of areas of the rectangles      =7X10+9.8X10+13.2X10+18.1X10+20.5X10      =68.6X10…

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A: Here we multiply this:

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