Answer:
- The first blank is 13, the second blank is 19.
Step-by-step explanation:
Given
- Each bag has 10 marbles and each box has 10 bags.
Each box has
Now, to complete the sentences assume the missing value is x.
1) 1 box, x bags and 9 single marbles:
- 1*100 + 10x + 9 = 239
- 109 + 10x = 239
- 10x = 239 - 109
- 10x = 130
- x = 13
2) 2 boxes, 2 bags and x single marbles:
- 2*100 + 2*10 + x = 239
- 200 + 20 + x = 239
- 220 + x = 239
- x = 239 - 220
- x = 19
