Basic Math Examples

Evaluate 0.07*800
0.078000.07800
Step 1
Multiply using long multiplication.
Tap for more steps...
Step 1.1
Multiply 00 by 77. Place the result in the next column in the result line. There is one result line for each digit in 800800.
00.0077
×880000
00
Step 1.2
Multiply 00 by 00. Place the result in the next column in the result line. There is one result line for each digit in 800800.
00.0077
×880000
0000
Step 1.3
Multiply 00 by 00. Place the result in the next column in the result line. There is one result line for each digit in 800800.
00.0077
×880000
000000
Step 1.4
Multiply 00 by 77. Place the result in the next column in the result line. There is one result line for each digit in 800800.
00.0077
×880000
000000
00
Step 1.5
Multiply 00 by 00. Place the result in the next column in the result line. There is one result line for each digit in 800800.
00.0077
×880000
000000
0000
Step 1.6
Multiply 00 by 00. Place the result in the next column in the result line. There is one result line for each digit in 800800.
00.0077
×880000
000000
000000
Step 1.7
Multiply 88 by 77. Place the ones digit (6)(6) in the result line and carry the tens digit (5)(5). There is one result line for each digit in 800800.
55
00.0077
×880000
000000
000000
66
Step 1.8
Multiply 88 by 00 and add the carried 55. Place the result in the next column in the result line. There is one result line for each digit in 800800.
55
00.0077
×880000
000000
000000
5566
Step 1.9
Multiply 88 by 00. Place the result in the next column in the result line. There is one result line for each digit in 800800.
00.0077
×880000
000000
000000
005566
Step 1.10
Add the numbers in each column. In this case, add 0+0+00+0+0, then place the 00 in the result line.
00.0077
×880000
000000
000000
005566
00
Step 1.11
Add the numbers in each column. In this case, add 0+0+00+0+0, then place the 0 in the result line.
0.07
800
000
000
056
00
Step 1.12
Add the numbers in each column. In this case, add 0+0+6, then place the 6 in the result line.
0.07
800
000
000
056
600
Step 1.13
Add the numbers in each column. In this case, add 0+0+5, then place the 5 in the result line.
0.07
800
000
000
056
5600
0.07
800
000
000
056
5600
Step 2
To find the number of decimal places needed in the answer, add the number of decimal places in the multiplier and multiplicand. In this case, there is a total of 2, so the answer must have 2 decimal places as well.
56
 [x2  12  π  xdx ]