I found it hard but I did it anyway and my teacher helped me to make it easier.
Count backwards by 1, 10, 100 to 1000
| |||||
Subtract 100 from original number -100
|
Subtract 10 from original number -10
|
Original Number
|
Add 10 to original number +10
|
Add 100 to original number +100
| |
Question 1
|
331
|
421
|
431
|
441
|
531
|
Question 2
|
539
|
629
|
639
|
649
|
739
|
Question 3
|
730
|
820
|
830
|
840
|
930
|
Question 4
|
62
|
152
|
162
|
172
|
262
|
Question 5
|
292
|
382
|
392
|
402
|
492
|
Question 6
|
805
|
895
|
905
|
915
|
1005
|
Question 7
|
738
|
838
|
848
|
858
|
948
|
Question 8
|
271
|
361
|
371
|
381
|
471
|
Question 9
|
533
|
523
|
633
|
643
|
743
|
Question 10
|
806
|
896
|
906
|
916
|
1006
|
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