Rounding Rules
If the number you are rounding is followed by 5, round the number _______?
up
Round to the nearest 10.
78
80
Round to the nearest 10.
129
130
What number is in the hundreds place?
3, 568
5
Even or odd?
5,698
Even
If the number you are rounding is followed by a 2, round the number _____?
keep the number the same
(let it rest!)
Round to the nearest 10
43
Round to the nearest 10. 456
460
What is the value of the 4?
543
40
Even or Odd?
83
odd
What number do you look at to determine if the number is rounded up or down?
The number to the right
Round to the nearest 10.
86
90
Round to the nearest 1,000.
5,698
6,000
Write in expanded form.
321
300 + 20 + 1
Using area model solve 3x245
735
Round up or down?
2
down
Round to the nearest 100.
489
500
Round to the nearest 1,000.
8,139
8,000
Write in standard form.
1,000 + 500 + 6
1,506
What are the first 4 multiples of 3
3,6,9,12
Round up or down?
5
up
Round to the nearest 100.
125
100
Round to the nearest 1,000.
3,239
3,000
Write in unit form.
1,687
1 thousand 6 hundreds 8 tens 7 ones
List the factors of 24
1,2,3,4,6,8,12,24