Round both, then compute
367 + 258 = 625 Grade 3
How this one works
How
round both numbers, then add the easy ones.
Best when
you want a quick check before you solve.
The same problem, other ways
Try “number line” or “4.5D”
367 + 258 = 625 Grade 3
How this one works
round both numbers, then add the easy ones.
you want a quick check before you solve.
The same problem, other ways