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To solve this problem, we'll follow these steps:
Now, let's work through each step:
Step 1: The tens digit of 68 is 6, and the units digit is 8.
Step 2: Since the units digit (8) is 5 or greater, we round up the number 68.
Step 3: After rounding up, we replace the units digit with 0, resulting in the rounded number 70.
Therefore, the solution to the problem is .
\( 52\approx\text{ ?} \)
The units digit determines rounding direction! Since 8 ≥ 5, we round up to the next ten. Think of it as 68 being closer to 70 (only 2 away) than to 60 (8 away).
When the units digit is exactly 5, we always round up to the next ten. For example, 65 rounds up to 70, and 25 rounds up to 30.
Use this memory trick: "5 and above, give it a shove (up)!" If the units digit is 5, 6, 7, 8, or 9, always round up to the next ten.
The same rule applies! Look at the tens digit instead of the units digit. If the tens digit is 5 or greater, round up to the next hundred.
We're rounding to the nearest ten, not the nearest single digit. The tens place value means we replace the units digit with 0, keeping the tens digit (or increasing it by 1 when rounding up).
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