Compare
Is this statement true or false?
4.5 > 4.2
True
order these number from least to greatest:
3,1,5,6
1,3,5,6
Round to the nearest tens:
43
40
round to the nearest tenths:
2.34
2.3
What is the first rule when rounding numbers/decimals?
Look at the number in the rounding place.
Compare the two whole numbers:
43 _____ 32
IS GREATER THAN (>)
2.3 , 2.1 , 2.6, 2.0
2.0, 2.1, 2.3, 2.6
round to the nearest hundreds:
456
500
round to the nearest tenths:
5.57
5.6
What is the second rule when rounding?
Look at the neighbor number on the right and see if it is 5 or above or 4 below.
Compare the two decimals:
3.0 _____ 3.5
3.2, 3.9, 3.7, 3.3
3.2, 3.3, 3.7, 3.9
round to the nearst tens:
287
290
round to the nearest hundredths:
65.375
65.38
What happened to all the numbers after the number being rounded?
They become '0'
2.4 _____ 2.9
4.5, 3.2, 4.1, 3.9
3.2, 3.9, 4.1, 4.5
round to the nearest hundreds:
1,592
1,600
round to the nearest hundredths:
3.932
3.930
What do you do if the neighboring number is 5 and above?
You add one (+1) to the number that is being rounded
3.45 ________ 3.24
GREATER THAN (>)
5.3, 1.2, 3.6, 2.2
1.2, 2.2, 3.6, 5.3
round to the nearest tens and hundreds:
4789
tens:4790
hundreds: 4800
round to the nearest whole number:
34.8
What happens to the rounding number if the neighboring number is 4 and below
NOTHING. It stays the same.