1.
Round 48 to the nearest ten.
A.
C.
2.
C.
C.
55
100
600
B.
D.
320
500
440
220
B.
D.
400
0
Find 806 + 56.
A.
C.
5.
D.
50
Find 200 + 200.
A.
4.
45
B.
Find 300 + 200.
A.
3.
40
750
862
B.
D.
872
852
Find 907 + 19.
A.
C.
926
936
B.
D.
916
917
6.
Find 458 + 261.
A.
C.
7.
C.
D.
709
619
317
309
B.
D.
319
219
Estimate the sum to the nearest ten. 773 + 184
A.
C.
9.
609
B.
Find 261 + 58.
A.
8.
719
950
930
B.
D.
960
940
Estimate the sum to the nearest hundred. 743 + 184
A.
C.
700
900
B.
D.
600
800
10. Find the difference.
600 − 200
A.
C.
400
600
B.
D.
200
800
11. Find the difference.
300 − 100
A.
C.
30
400
B.
D.
200
220
12. Find the difference.
564 − 35
A.
C.
531
599
B.
D.
539
529
13. Find the difference.
384 − 67
A.
C.
451
317
B.
D.
327
323
14. Find the difference.
534 − 273
A.
C.
341
261
B.
D.
241
361
15. Find the difference.
902 − 6
A.
C.
896
894
B.
D.
904
908
16. Estimate the difference to the nearest hundred. 626 − 187
A.
C.
400
600
B.
D.
500
700
17. Which is a better estimate for 696 − 187?
A.
696 − 187 is 501 which is
closer to 510 than 500 so the
nearest ten is better.
B.
C.
696 − 187 is 509 which is
closer to 510 than 500 so the
nearest hundred is better.
D.
696 − 187 is 501 which is
closer to 500 than 510 so
the nearest hundred is
better.
696 − 187 is 509 which is
closer to 510 than 500 so
the nearest ten is better.
18. Marcos plays the piano about 20 minutes each day. About how many
minutes will he play in four days?
A.
C.
about 80 minutes
about 40 minutes
B.
D.
about 24 minutes
about 60 minutes