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Mental Math

Mental Math. Rounding Numbers to the Nearest Hundred and Thousand. Instructions. First you need a piece of paper and a pencil. Please write your name, date and class at the top. Mental math isn’t about your hand its about your head.

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Mental Math

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  1. Mental Math Rounding Numbers to the Nearest Hundred and Thousand

  2. Instructions • First you need a piece of paper and a pencil. • Please write your name, date and class at the top. • Mental math isn’t about your hand its about your head. • Its fine if you find a few of them difficult! If you can’t get an exact answer make an estimate.

  3. A little laugh before we start…

  4. Specific Instructions • You will see TWO lists of 10 numbers. • In the FIRST LIST round each number to the nearest hundred. • In the SECOND LIST round each number to the nearest thousand. • You will have 2 minutes.

  5. Sept.8, 2011 – sheet #1 • 683 • 564 • 912 • 500 • 101 • 867 • 549 • 098 • 425 • 449

  6. Sept.8, 2011 – sheet #2 • 1203 • 7816 • 4899 • 2673 • 2410 • 8551 • 3549 • 3777 • 5037 • 1999

  7. Sept.8, 2011 – sheet #1 ANSWERS • 683=700 • 564=600 • 912=900 • 500=500 • 101=100 • 867=900 • 549=500 • 098=100 • 425=400 • 449=400

  8. Sept.8, 2011 – sheet #2 ANSWERS • 1203=1000 • 7816=8000 • 4899=5000 • 2673=3000 • 2410=2000 • 8551=9000 • 3549=4000 • 3777=4000 • 5037=5000 • 1999=2000

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