Question

using math drawings to subtract
directions- solve vertically and draw a chip model on the place value chart.
171 - 52 = 119
\thundreds \t tens \t ones
143 - 46 = 9570
\thundreds \t tens \t ones

Explanation:

First Sub - Question: \(171 - 52\)

Step 1: Subtract ones place

In the ones place, we have \(1 - 2\). Since \(1<2\), we need to borrow 1 ten from the tens place. The 7 tens in the tens place become 6 tens, and the 1 one in the ones place becomes \(1 + 10=11\) ones. Now we subtract: \(11 - 2 = 9\) ones.

Step 2: Subtract tens place

In the tens place, we now have 6 tens (after borrowing) and we subtract 5 tens. So \(6-5 = 1\) ten.

Step 3: Subtract hundreds place

In the hundreds place, we have 1 hundred and there is no subtraction (since the subtrahend has 0 hundreds), so we keep 1 hundred.
Putting it all together, we have 1 hundred, 1 ten, and 9 ones, so \(171 - 52=119\).

Second Sub - Question: \(143 - 46\)

Step 1: Subtract ones place

In the ones place, we have \(3 - 6\). Since \(3<6\), we need to borrow 1 ten from the tens place. The 4 tens in the tens place become 3 tens, and the 3 ones in the ones place become \(3 + 10 = 13\) ones. Now we subtract: \(13-6 = 7\) ones.

Step 2: Subtract tens place

In the tens place, we now have 3 tens (after borrowing) and we subtract 4 tens. Since \(3<4\), we need to borrow 1 hundred from the hundreds place. The 1 hundred in the hundreds place becomes 0 hundreds, and the 3 tens in the tens place become \(3+10 = 13\) tens. Now we subtract: \(13 - 4=9\) tens.

Step 3: Subtract hundreds place

In the hundreds place, we had 1 hundred, but we borrowed it, so we have 0 hundreds left (and we don't need to consider subtraction here as the subtrahend has 0 hundreds).
Putting it all together, we have 0 hundreds, 9 tens, and 7 ones, so \(143 - 46 = 97\).

Answer:

\(171 - 52=\boldsymbol{119}\)

\(143 - 46=\boldsymbol{97}\)