Advanced Challenge

Solve these problems to test your skills!

1) Solve
Round 175 to nearest 100
2) Solve
200 + 70 + ? = 274
3) Solve
? + 40 + 9 = 149
4) Solve
300 + ? + 2 = 342
5) Solve
400 + 70 + ? = 474
6) Solve
Round 77 to nearest 100
7) Solve
900 + 80 + ? = 981
8) Solve
Round 946 to nearest 100
9) Solve
Round 47 to nearest 10
10) Solve
600 + ? + 5 = 655
11) Solve
Round 986 to nearest 100
12) Solve
Round 383 to nearest 100
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