Question

marbles are sold in boxes in bags or single marbles each has 10 bags or marbles in it each bad has 10 in it

Answer 1

• The first blank is 13, the second blank is 19.

Explanation:

Given

• Each bag has 10 marbles and each box has 10 bags.

Each box has

• 10*10 = 100 marbles

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