value of the sum
456+321=
777
347-124=
223
240
There are 50 pieces of candy in the jar. 20 pieces were jolly ranchers. 10 were starburst. The rest of the pieces were reeces.
reeces= r
50-(10+20)=r
20+10+r=50
A classroom has 30 desks. There are 15 students who show up up and then 12 more students show up to class. How many empty seats are there?
3 empty seats
539+232=
771
468-248=
220
What is 485 rounded to the nearest hundreds?
500
198+785=
983
567-193=
374
What is 750 rounded to the nearest tens and nearest hundreds?
nearest tens: 750
nearest hundreds: 800
A box contains 120 markers. 6 students each take 2 markers. Letter m represents how many markers are left in the box.
120 - (6x2) = m
120 - (2x6) = m
978+549=
1,527
550-253=
297
What is 245 rounded to the nearest tens and nearest hundred?
356+768=
1,124
900-427=
473
What is 304 rounded to the nearest tens and nearest hundreds?
nearest tens: 300
nearest hundreds: 300