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What is the sum of 123 and 45 on the abacus?
- a)168
- b)178
- c)188
- d)158
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
What is the sum of 123 and 45 on the abacus?a)168b)178c)188d)158Correc...
Calculation on the Abacus:
1. Representing 123 on the Abacus:
- To represent 123 on the abacus, you would move 1 bead in the hundreds place, 2 beads in the tens place, and 3 beads in the ones place.
2. Representing 45 on the Abacus:
- To represent 45 on the abacus, you would move 4 beads in the tens place and 5 beads in the ones place.
3. Adding 123 and 45 on the Abacus:
- When you add 123 and 45 on the abacus, you would combine the beads in the respective places to get the total sum.
- Adding the beads in the hundreds place gives 100.
- Adding the beads in the tens place gives 60.
- Adding the beads in the ones place gives 18.
4. Calculating the Total Sum:
- Now, when you add the sums from each place (100 + 60 + 18), you get a total sum of 178.
Therefore, the sum of 123 and 45 on the abacus is 178.
1. Representing 123 on the Abacus:
- To represent 123 on the abacus, you would move 1 bead in the hundreds place, 2 beads in the tens place, and 3 beads in the ones place.
2. Representing 45 on the Abacus:
- To represent 45 on the abacus, you would move 4 beads in the tens place and 5 beads in the ones place.
3. Adding 123 and 45 on the Abacus:
- When you add 123 and 45 on the abacus, you would combine the beads in the respective places to get the total sum.
- Adding the beads in the hundreds place gives 100.
- Adding the beads in the tens place gives 60.
- Adding the beads in the ones place gives 18.
4. Calculating the Total Sum:
- Now, when you add the sums from each place (100 + 60 + 18), you get a total sum of 178.
Therefore, the sum of 123 and 45 on the abacus is 178.
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Community Answer
What is the sum of 123 and 45 on the abacus?a)168b)178c)188d)158Correc...
- Set 123 on the abacus: 1 bead in the hundreds column, 2 beads in the tens column, 3 beads in the ones column.
- Add 45: Add 4 beads to the tens column (total 6 beads) and 5 beads to the ones column (total 8 beads).
- The total is 168.
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