# Missing Digits

Directions: Fill in the blanks with digits to make the answer closer to 200 than 300.

### Hint

What is one number that is closer to 200 than 300?
How can you get that number?
How can you keep track of your trials and answers so you can share them?
What is one solution?
What other solutions can you find?
How many possible solutions are there?
How many possible solutions if you can’t use a digit more than once?

There are many possible answers. E.g. 432 – 199 = 233.
If digits can be repeated, there are 1225 possible ways.
If digits CANNOT be repeated, there are 700 possible ways.

Source: Marilyn Burns and Graham Fletcher

## Multiply and Divide Within A Hundred 1

Directions: Using the digits 2 to 9 at most one time each, place a digit …

1. This helps a lot!

2. I like this question!

I also found an answer. It is 408-162=246.

3. 1. 430 – 196 = 234

2. A. 431 – 199 = 232
B. 430 – 191 = 239
C. 428 – 198 = 230
D. 425 – 197 = 228
E. 427 – 193 = 234

3. I got 1225 possible ways as my answer.

4. I got 749 ways to not use repeated digits as my answer.

4. 1)400-199=201
2)401-198=203
3)400-197=203
4)400-196=204

5. I am surprised at how many solutions there are to the problem!1225 when you can repeat the numbers and 749 when you can’t repeat the numbers.

6. It can also be any rounded number rounded to 200 or less. 0-249 are good numbers to solve. The hint helps.

7. With using 0-9 only once my student and I got 401-198= 203.

8. A.459-243=216
B.465-244=221

9. 441-196=245
415-177=238
436-188=248
428-189=239
418-169=249

10. 400-199=201

11. 400 – 175 = 225

12. 432-199=233

13. John Birnstengel

642-431=211

14. 400 and 199
Love math ❤️❤️❤️❤️😘😘😘💕💕💕💕🎶🎶😉

15. The answer is E. G. 432-199=233

16. 401-199=202

17. 400-190=210

18. It is 401-199=202 it think

19. 400-163=237

21. Oh, it is 432-199=233

22. this is hard

23. what do we do

24. 400-199 is the closesd solution to 200

25. There are many possible answers. E.g. 432 – 199 = 233.
If digits can be repeated, there are 1225 possible ways.
If digits CANNOT be repeated, there are 700 possible ways.

26. I like that there are so many possible answers. I went with the lowest number I could make with the 4 and the highest number I could make with the 1 .

400-199=201

27. 412-182 = 230
Regrouping in the tens place

28. thank you very much it helped a lot🎇😁😁😁