If
Solve the following addition problem:
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If
Solve the following addition problem:
To solve this problem, we will follow these steps:
Now, let's perform the calculations:
Step 1: Interpret as .
Step 2: The expression we need to solve is .
Step 3: Calculate the sum:
.
We find that the sum of 23 and 12 is 35.
Therefore, the solution to the problem is , which corresponds to choice number 2 in the given options.
If we have 67 blocks in total, how many blocks will remain if we remove 5 tens and 4 ones?
The yellow box is a visual variable - like using x or y in algebra. In this problem, it's simply a placeholder that equals 12.
No! The problem already tells you that the yellow box equals 12. You just need to substitute this value into the addition problem.
Using visual symbols like colored boxes helps you practice variable substitution - an important skill you'll use in algebra when working with letters like x and y.
Always read the entire problem carefully! Look for given information at the beginning. In this case, the first line tells you exactly what the yellow box represents.
This is simpler than solving equations! You're not finding an unknown value - you're just substituting a known value and calculating the result.
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