Addition
Show your work and prove your work:
34+56=______
90
Show your work and prove your work:
23-10=______
13
Round 23 to the nearest 10
33
2x30=
60
Jame found 25 cents. How much more does he need to get a whole dollar?
75 cents
Show your work and prove your work: 109+61=_____
170
Show your work and prove your work:
134- 99=
35
300
How many 4's are there in 20?
5
Camila found 75 cents. How much more does she need to get a whole dollar?
25
Show your work and prove your work:
2945 + 300
3245
Show your work and prove your work:
567- 136 =
431
Round 4567 to the nearest 1000
5000
How many 3s are there is 18?
6
A third grade class counted balls in their classroom. There were 543 basketballs and 332 soccer balls. Amanda said, “That’s about 1,000 balls altogether.” Ollie disagreed, “No, I think 700 is a closer estimate of the total.” Which student’s estimate is more reasonable? Why?
Ollie
1008+566
1574
Show your work and prove your work:
4567-1678
2889
Shukri has $8999 less than Eynas. Eynas has $9999. How much does Shukri have?
1,000
___ x 2= 30
15
A third grade class counted toys in their school. There were 700 cars toys and 300 rockets. Juana said, “That’s about 2,000 toys altogether.” Olivia disagreed, “No, I think 600 is a closer estimate of the total.” Which student’s estimate is more reasonable? Why?
Olivia
24568+567
25135
Show your work and prove your work: 2537-3728
1191
Shukri has $5679 less than Saadiya. Saadiya has $7909. How much does Shukri have?
2230
___ x 6 = 48
8
Pamela calculated 679 – 73 = 606
She can check her calculation by using what equivalent addition sentence?
__________ + __________ = __________
606 + 73 = 679