Addition
312 + 237
549
478 - 362
116
4 x 5
20
What place is the '4' in 945?
Tens
How many digits in the number: 45?
2
145 + 712
857
687 - 443
244
6 x 7
42
What place is the '5' in 945?
Ones
How many digits in the number: 3457?
4
445 + 447
892
756-549
207
8 x 7
56
What place is the '9' in 945?
Hundreds
How many digits in the number: 7?
1
358 + 769
1127
1056 - 637
419
11 x 6
66
What place is the '1' in 1945?
Thousands
How many digits in the number: 123593457?
9
1126 + 745
1871
1152 - 551
601
11 x 11
121
What place is the '2' in 21945?
Ten-thousands
How many digits in the number: 345?
3