Operations on Larger Numbers — Flashcards
ICSE · Class 5 · Mathematics
25 flashcards for Operations on Larger Numbers (ICSE Class 5 Mathematics) to test yourself on key terms and facts. Sample: "Add: 45 67 890 + 12 34 567"
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Add: 45 67 890 + 12 34 567
Answer
Step 1: Arrange in columns (ones under ones, etc.) Step 2: Add column by column from right to left. 45 67 890 + 12 34 567 __________ 58 02 457 Answer: 58,02,457…
Add: 7 89 456 + 2 34 789 + 1 23 456
Answer
Step 1: Align numbers by place value. Step 2: Add column-wise with carry-over. 7 89 456 + 2 34 789 + 1 23 456 __________ 11 47 701 Answer: 11,47,701…
Subtract 34 56 789 from 67 89 012
Answer
Step 1: Write larger number on top. Step 2: Subtract column-wise, borrowing when needed. 67 89 012 - 34 56 789 __________ 33 32 223 Answer: 33,32,223…
By how much is 8 76 543 greater than 5 43 210?
Answer
We subtract smaller number from larger. 8 76 543 - 5 43 210 __________ 3 33 333 Answer: 3,33,333…
Multiply: 4567 × 89
Answer
Step 1: Multiply 4567 by 9 → 41,103 Step 2: Multiply 4567 by 80 → 3,65,360 Step 3: Add both results: 41,103 +3,65,360 ________ 4,06,463 Answer: 4,06,463…
Multiply: 2345 × 123
Answer
Step 1: 2345 × 3 = 7,035 Step 2: 2345 × 20 = 46,900 Step 3: 2345 × 100 = 2,34,500 Step 4: Add all: 7,035 46,900 +2,34,500 ________ 2,88,435 Answer: 2,88,435…
A school has 1,250 students. Each pays ₹850 for a trip. How much money is collected?
Answer
Total = Number of students × Fee per student = 1,250 × 850 Step 1: 1,250 × 800 = 10,00,000 Step 2: 1,250 × 50 = 62,500 Step 3: Add → 10,00,000 + 62,500 = ₹10,62,500 Answer: ₹10,62,500…
A factory produces 2,345 toys per day. How many toys in 30 days?
Answer
Total = Daily production × Days = 2,345 × 30 Step 1: 2,345 × 3 = 7,035 Step 2: Multiply by 10 → 7,035 × 10 = 70,350 Answer: 70,350 toys…
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