We built the number 66 - what number will we get if we add one ten and one unit?
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We built the number 66 - what number will we get if we add one ten and one unit?
To solve this problem, we need to add one ten (10) and one unit (1) to the number 66.
We'll follow these steps to find the new number:
Therefore, after adding one ten and one unit to 66, the resulting number is .
If we have 85 blocks in total, how many blocks will remain if we remove 4 tens and 1 one?
'One ten' refers to a single ten-block representing the value 10. It's the same as adding 10 to your number! The base-10 blocks help you visualize this place value concept.
Because that ignores place value! The first 6 represents 6 tens (60), not 6 ones. You must add , respecting what each digit position means.
The blocks show visual place value! Each large rectangle is a ten-block (worth 10), and each small square is a unit block (worth 1). Count them to see the total value.
That works too! You can calculate first, then . Addition is flexible - the order doesn't change the final answer.
Yes! When you add 10 to any two-digit number, the tens digit increases by 1 and the ones digit stays the same. So 66 + 10 = 76, then 76 + 1 = 77.
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