Estimate the sum 99+53 to the nearest ten

150.

Step-by-step explanation:

99-100

53-50

100+50=150

150.

Step-by-step explanation:

99 + 53 = 152.

rounding it to the nearest tens would be 150.

a

step-by-step explanation:

when a number is between two straight lines it means the absolute value.

to find absolute value you need to know how many numbers is that number away from 0.

when finding absolute value the number will always come out positive

so absolute value of -3 is 3

absolute value of 3/2 is 3/2

absolute value of -2 is 2

absolute value of 3.5 is 3.5

absolute value of -1 is 1

now put these numbers in order:

a)   |-1|, |3/2|, |-2|, |-3|, |3.5|