Addition — Flashcards
ICSE · Class 4 · Mathematics
24 flashcards for Addition (ICSE Class 4 Mathematics) to test yourself on key terms and facts. Sample: "Add: 4,56,789 + 2,34,567"
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Add: 4,56,789 + 2,34,567
Answer
Step 1: Arrange numbers in columns. Step 2: Add ones: 9 + 7 = 16 → write 6, carry 1 Step 3: Add tens: 8 + 6 + 1 = 15 → write 5, carry 1 Step 4: Add hundreds: 7 + 5 + 1 = 13 → write 3…
Add: 1,23,456 + 78,901 + 56,789
Answer
Step 1: Arrange in columns. Step 2: Add ones: 6 + 1 + 9 = 16 → write 6, carry 1 Step 3: Add tens: 5 + 0 + 8 + 1 = 14 → write 4, carry 1 Step 4: Add hundreds: 4 + 9 + 7 + 1 = 21 → wri…
What is 3,45,678 + 0?
Answer
When we add 0 to any number, the number remains the same. So, 3,45,678 + 0 = 3,45,678…
Is 2,34,567 + 1,23,456 the same as 1,23,456 + 2,34,567? Why?
Answer
Yes, they are the same because of the commutative property of addition. This property says that changing the order of numbers does not change the sum. Example: 2,34,567 + 1,23,456 = 3,58,023 and…
Add: 5,67,890 + 3,45,678
Answer
Step 1: Add ones: 0 + 8 = 8 Step 2: Add tens: 9 + 7 = 16 → write 6, carry 1 Step 3: Add hundreds: 8 + 6 + 1 = 15 → write 5, carry 1 Step 4: Add thousands: 7 + 5 + 1 = 13 → write 3, c…
Use the associative property to group and add: (1,23,456 + 78,901) + 56,789
Answer
Step 1: First add inside brackets: 1,23,456 + 78,901 = 2,02,357 Step 2: Now add 2,02,357 + 56,789 Step 3: Add ones: 7 + 9 = 16 → write 6, carry 1 Step 4: Add tens: 5 + 8 + 1 = 14 → w…
Add: 9,99,999 + 1
Answer
Step 1: Add ones: 9 + 1 = 10 → write 0, carry 1 Step 2: Add tens: 9 + 0 + 1 = 10 → write 0, carry 1 Step 3: Add hundreds: 9 + 0 + 1 = 10 → write 0, carry 1 Step 4: Add thousands: 9 +…
What is the sum of the largest 6-digit number and the smallest 7-digit number?
Answer
Largest 6-digit number = 9,99,999 Smallest 7-digit number = 10,00,000 Sum = 9,99,999 + 10,00,000 = 19,99,999…
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