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Friday, 26 October 2018

Rounding decimals

  WALT - Round whole numbers.
  • 3687.86 - 3688
  • 476.4 - 475
  • 139,845.52 - 139,846
  • 98.789 - 99
98.789 is between 98 and 99.Since I am rounding up to the nearest whole number I
will look at the tenths place to decide whether to round up or down.Because 7 is greater than 5.I will round up to 99
     - 266.08 - 266
266.08 is between 266 & 267.Since I am rounding up to the nearest whole number I
will look at the tenths place whether to round up or down.Because 7 is greater than 5.I will round down to 266    
70,899.384 - 70,898
70,898 is between 70,897 & 70,899. Since I am rounding up to the nearest whole number I will look at the tenths place whether to round up or down.Because 8 is greater than 5.I will round down to 70,898
  • 2,469.491 - 2,469
2,469.491 is between 2,469 & 2,470. Since I will be rounding
it to the nearest whole number I take a look at the first whole number
in the ones place then look to the right which is the tenths place and since
4 is lower I will be rounding down. Which brings you 2,469
  • 41,806.607 - 41,807
41,806.608 is between 41,806 & 41,807. Since i am rounding it to the
nearest whole number I will take a look at the first whole number in the
ones place then look to the right which is the tenths place and since 6 is higher
than 5 I will be rounding up to the nearest whole number. Which brings you 41,807
  • 219,411.099 - 219,411
219,411.099 is between 219,411 & 219,412.Since i am rounding it to the
nearest whole number I will  take a look at the first whole number in the ones place
then look to the right which is the tenths place and since 0 is lower than 5
I would be rounding down to the nearest whole number. Which gives you 219,411
  • 658,414.584 - 658,414
658,414.584 is between 658,414 & 658,415. Since I will be rounding it to
the nearest whole number I first look at the whole numbers in the ones place then look
to the right which is the tenths place and since 5 is lower than 5 I will be rounding down. Which brings you 658,414
  • 3,605,435.85 - 3,605,436
3,605,435.85 is between 3,605,435 & 3,605,436. Since i am rounding to the     nearest whole number
I take a look at the first whole number in the ones place then look to the right which is the tenths place and since
8 is higher than 5 I will be rounding up to the nearest whole number. Which would give you 3,605,436


WALT - Round to the nearest ten
  1. 2,469
2,469.491 is between 2,460 & 2,470. Since I will be rounding it to the nearest ten.
I first take a look at the tens place then look to the right and change the 9 to 0.
Now since 9 is higher than 5 I will be rounding up to 2,470


  1. 41,8O6
41,806.608 is between 41,800 & 41,810. Since i am rounding it to the nearest ten I
first take a look at the ten place and to decide if to round up or down and since 6 is
higher than 5 I will be rounding up to 41,810

    3. 219,411
219,411.099 is between 219,410 & 219,420.Since I am rounding it to the nearest tens
I first take a look at the tens place then look to the right which is the ones place and
since 0 is lower than 5 I will be rounding down to the nearest tens. Which is 219,410


   4. 658,414
658,414.584 is between 658,410 & 658,420. Since I am rounding it to the nearest tens
I first take a look at the tens place then look to the right which is the ones place and then
change the 4 into 0. Now since 4 is lower than 5 I will round it to 658,410


  5. 3,605,435
3,605,435.85 is between 3,605,430 & 3,605,440. Since I am rounding it to the nearest tens
I take a look at the ten place then look to the right which is the ones place and then change
5 into 0. Now since 5 is to 5 you still have to round down to 3,605,430.

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