Category 1
12 rounded to the nearest ten
10
28 rounded to the nearest ten
30
74 rounded to the nearest ten
70
If a number is 4 or lower
Round down
If a number is 5 or higher
Round up
276 rounded to the nearest ten
280
876 rounded to the nearest one hundred
900
280
356 rounded to the nearest hundred
400
I should estimate a total cost of something when
Adding groceries or cost of something
I should round a number when ordering cupcakes for a birthday party because
It is better to have more cupcakes than not enough
Solve the equation using compatible numbers
167 + 42=
200
A compatible number is used to
Make adding, subtracting, multiplying or dividing easier
Another name for compatible numbers
friendly numbers
Benchmarks are usually seen in multiples of
10
100