If we have 85 blocks in total, how many blocks will remain if we remove 4 tens and 1 one?
We have hundreds of course questions with personalized recommendations + Account 100% premium
If we have 85 blocks in total, how many blocks will remain if we remove 4 tens and 1 one?
To solve this problem, we begin by calculating the total number of blocks to remove.
Step 1: Calculate the blocks in 4 tens.
Step 2: Calculate the total blocks to remove by combining tens and ones.
Step 3: Subtract the total removed blocks from the initial total to determine how many blocks remain.
Therefore, the number of blocks remaining is .
If we have 85 blocks in total, how many blocks will remain if we remove 4 tens and 1 one?
Because the problem asks how many total blocks remain, not tens and ones separately. Converting helps you work with the same unit throughout: .
In base-ten blocks, a 'ten' is a long block representing 10 unit blocks. You can see this in the diagram where the long rectangles represent tens and small squares represent ones.
No! That would give you 41, which is wrong. You must convert everything to the same unit first. We're removing a total of 41 blocks, not working with separate place values.
Count the blocks in the original diagram: 8 ten-blocks plus 5 one-blocks = 85 total. After removing 4 tens and 1 one, you should have 44 blocks remaining.
Regular subtraction like gives the same answer, but this problem helps you visualize place value using concrete blocks. It's the same math, just shown differently!
Get unlimited access to all 18 Natural Numbers around 100 questions, detailed video solutions, and personalized progress tracking.
Unlimited Video Solutions
Step-by-step explanations for every problem
Progress Analytics
Track your mastery across all topics
Ad-Free Learning
Focus on math without distractions
No credit card required • Cancel anytime