Subtraction - Examples, Exercises and Solutions

To solve this problem, we begin by calculating the total number of blocks to remove.

Step 1: Calculate the blocks in 4 tens.

• A "ten" refers to 10 blocks. Thus, 4 tens equal $4 \times 10 = 40$ blocks.

Step 2: Calculate the total blocks to remove by combining tens and ones.

• We are also removing 1 more block, so the total becomes $40 + 1 = 41$ blocks.

Step 3: Subtract the total removed blocks from the initial total to determine how many blocks remain.

• $85 - 41 = 44$.

Therefore, the number of blocks remaining is $44$.

To solve this problem, we'll perform basic subtraction.

• Step 1: Identify the minuend and subtrahend.

• The minuend (the number from which we are subtracting) is 85.

• The subtrahend (the number to be subtracted) is 30.

• Step 2: Apply the subtraction formula $85 - 30$.

• Step 3: Calculate the difference.

Subtract 30 from 85 as follows:
$85 - 30 = 55$

Therefore, the solution to the problem is $55$.

To solve this problem, we'll follow these steps:

• Step 1: Identify the given information, which is the number 92 and the amount to subtract, 60.
• Step 2: Perform the subtraction operation: $92 - 60$.

Now, let's work through each step:

Step 1: We know we need to subtract 60 from 92. This can be expressed mathematically as $92 - 60$.

Step 2: Perform the subtraction:

$92 - 60 = 32$

We find that subtracting 60 from 92 yields 32.

Therefore, the solution to the problem is $32$.

To solve this problem, we'll proceed through the following steps:

• Step 1: Identify how many blocks are represented by "2 tens".
• Step 2: Subtract the number of removed blocks from the total number of blocks given.

Now, let's work through each step:
Step 1: "2 tens" equates to $2 \times 10 = 20$ blocks.
Step 2: We are removing 20 blocks from the total of 46 blocks. Using subtraction, we have:

$46 - 20 = 26$

Therefore, after removing 2 tens (which is 20 blocks), the number of blocks that remain is $26$.

To solve this simple subtraction problem, let's follow the steps:
Step 1: Identify the numbers involved, which are $73$ and $3$.
Step 2: Apply the operation of subtraction to these numbers. The problem asks us to subtract $3$ from $73$, resulting in the mathematical operation $73 - 3$.
Step 3: Calculate the result of the subtraction: $73 - 3 = 70$.

Therefore, the result of subtracting three units from the number 73 is $70$.

To determine how many blocks remain, follow these steps:

• Step 1: Calculate how many blocks 5 tens represent: $5 \times 10 = 50$.
• Step 2: Add the 4 individual blocks being removed: $50 + 4 = 54$.
• Step 3: Subtract the total removed blocks from the original number of blocks: $55 - 54 = 1$.

After performing these calculations, we find that the number of blocks remaining is $1$.

Therefore, the solution to the problem is $1$.

To solve this problem, we begin by determining what needs to be subtracted from the number 36. We have "2 tens" and "5 units" to subtract:

• 2 tens is equal to 20 because one ten is equal to 10.
• 5 units are simply the number 5 added directly.

Therefore, the total amount to subtract is $20 + 5 = 25$.

Next, we perform the subtraction operation:

Starting with the number 36, subtract 25:

• $36 - 25 = 11$

After performing the subtraction, we conclude that the final result is:

$11$.

To solve this problem, let's consider the following steps:

• Step 1: Understand the removal of blocks. We are removing 5 tens and 4 ones. One "ten" equals 10 units, so 5 tens equal $5 \times 10 = 50$ units.
• Step 2: Calculate the total number of blocks to be removed. We have 50 (from tens) + 4 (ones) = 54 units to be removed.
• Step 3: Perform the subtraction from the total number of blocks. The total number of blocks is 67. Therefore, we calculate $67 - 54 = 13$.

After performing the above calculations, we confirm that the number of blocks remaining is $13$.

Let's solve the problem step by step:

We begin with a total of $79$ blocks.

First, we need to determine how many blocks are removed:

• Two tens, which equals $2 \times 10 = 20$ blocks.
• Three ones, equaling $3$ blocks.

Add the blocks removed together: $20 + 3 = 23$ blocks removed in total.

Now, subtract the total blocks removed from the starting total:

$\text{Total remaining} = 79 - 23 = 56$

Therefore, the number of blocks remaining is $56$.

To solve the problem 98 - 45, we'll apply a step-by-step subtraction method:

First, align the numbers:

   98
- 45
-----

Now, subtract starting from the rightmost digits (ones place):

• Subtract the ones place: 8 - 5 = 3
• Subtract the tens place: 9 - 4 = 5

Therefore, the total difference is 53.

Thus, the solution to the problem is $53$.

To solve the problem of finding $86 - 34$, we can follow these steps:

• Align the numbers by place value:
• 86 (|Tens|Ones|)
• - 34 (|Tens|Ones|)
• Step 1: Subtract the ones place. $6 - 4 = 2$.
• Step 2: Subtract the tens place. $8 - 3 = 5$.

Putting the results together, the difference is $\mathbf{52}$.

Therefore, the correct answer to the subtraction $86 - 34$ is $52$.

To solve the subtraction problem $79 - 57$, follow these steps:

• Step 1: Align the numbers by place value.

Write: $\begin{array}{c} & 7 & 9 \\ - & 5 & 7 \\ \hline \end{array}$

• Step 2: Subtract starting from the units place.

Subtract $7$ from $9$:
$9 - 7 = 2$.
Place $2$ in the units position.

• Step 3: Subtract the tens place.

Subtract $5$ from $7$:
$7 - 5 = 2$.
Place $2$ in the tens position.

Thus, after performing the subtraction, the result is $22$.

Therefore, the solution to the problem $79 - 57$ is $22$.

To solve this subtraction problem, let's follow these simple steps:

• Step 1: Identify the numbers involved in the subtraction. Here, we need to subtract 60 from 66.
• Step 2: Perform the subtraction calculation. That is, calculate $66 - 60$.

Let's work through the steps:

Step 1: We are given two numbers: 66 (the minuend) and 60 (the subtrahend).

Step 2: Subtract the subtrahend from the minuend:

$66 - 60 = 6$

Thus, the difference between 66 and 60 is $6$.

To solve the subtraction problem $58 - 8 =$, we follow these steps:

• Identify the operation: We need to subtract 8 from 58.
• Perform the subtraction: Start from the rightmost digit of 58, which is 8 in the ones place.
• Subtract 8 from 58 directly:

We do this operation in a straightforward manner since it is a simple subtraction:

$58 - 8 = 50$

Therefore, the result of $58 - 8$ is $50$.

The correct answer is $50$.

To solve this problem, we need to evaluate each of the given expressions and compare the resulting values.

Step 1: Calculate $40 + 1$.

• $40 + 1 = 41$

Step 2: Calculate $47 - 7$.

• $47 - 7 = 40$

Step 3: Compare the results from the calculations in Step 1 and Step 2.

We have $41$ from the first expression and $40$ from the second expression. Clearly, $41 > 40$.

Thus, when comparing $40 + 1$ to $47 - 7$, we have:

$40 + 1 > 47 - 7$

Therefore, the correct choice is $>$.