If you have 400 on the abacus and add 123, what is the result?a)523b)5...
Understanding the ProblemWhen you have a number on the abacus and you want to add another number, you simply combine the two values. In this case, you start with 400 and want to add 123.
Breaking Down the AdditionTo better understand the addition, let's break it down step by step:
- Starting Value: 400
- Number to Add: 123
Step 1: Add the Units- The units place in 123 is 3.
- When you add 0 (from 400) and 3, you get 3.
Step 2: Add the Tens- The tens place in 123 is 2.
- Adding 0 (from 400) and 2 gives us 2.
Step 3: Add the Hundreds- The hundreds place in 123 is 1.
- Adding 4 (from 400) and 1 results in 5.
Final CalculationNow, we can combine these results:
- Hundreds: 5
- Tens: 2
- Units: 3
So, when you put them together, you get 523.
ConclusionThus, the correct answer to the addition of 400 and 123 is:
523 (Option A).