You can round 375 up to 380 (because the ones is 5 or greater). 147 would be rounded to 150. Then add 380 and 150 and that will give you 530. 375+147≈530
23/12 = 1 and 11/12
Hope this helps!
4n+25=5n+20
20+25=25+20
45=45
U= 2.5 which is rounded to the nearest tenth.
Integers are like -4,-3,-2,-1,0,1,2,3,4,5 etc
absolute value tells you how far the number is from 0
so example: |-5|=5=|5|
2 different integers can have the same absolute value
as long as they are negative of each other
like x and -x
