Question 30 of 48intermediate🔧 ApplyNumerical3 marks

Lou and Daisy brought ₹310 in all. After spending on food and some gifts, they are left with ₹179. How much money have they spent till now?

Correct Answer

Given: Total money = ₹310 Money left = ₹179

Formula: Money spent = Total money - Money left

Substitution: Money spent = 310 - 179

Calculation: 310 - 179 Cannot subtract 9 from 0, borrow from tens. Tens place is 1, borrow from hundreds. 310 becomes 2 H + 11 T + 0 O, then 2 H + 10 T + 10 O. Subtract: 10 - 9 = 1, 10 - 7 = 3, 2 - 1 = 1 Result = 131

Answer: They have spent ₹131.

Exercise: Subtract It | Q: 4 | (Page Page 13)
For More Understanding

Explanation

Total money = ₹310. Money left = ₹179. Money spent = 310 - 179 = 131. Using regrouping: 310 becomes 2 hundreds, 10 tens, 10 ones.

Solution Steps

  1. Step 1: Total money = ₹310

  2. Step 2: Money left = ₹179

  3. Step 3: Subtract: 310 - 179

  4. Step 4: Cannot subtract 9 from 0, borrow from tens

  5. Step 5: Tens place is 1, borrow from hundreds

  6. Step 6: 310 becomes 2 H + 11 T + 0 O, then 2 H + 10 T + 10 O

  7. Step 7: Subtract: 10 - 9 = 1, 10 - 7 = 3, 2 - 1 = 1

  8. Step 8: Answer: ₹131

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