How do I multiply hundred by hundred?

Question

use these numbers
124 x 142

Answer 1

1) start by multiplying the ones place on bottom by the whole top:

124
x 2
------
248

2) next multiply the tens place the same way but put a zero in the ones place

124
x 40
-----
4960

3) then multiply the hundreds place by the hundreds place with zeros in the ones and tens places

124
x100
------
12400

4) finally add all the totals together leaving you with the following equation and answer


124
x 142
---------
248
+ 4960
+ 12400
-----------
17608

Answer 2

Write the numbers such that 142 is directly above 124

Multiply by 4 of 124 to get 568
Multiply by 2 of 124 to get 284 but write this with 4 below 6 of 568
Multiply by 1 of 124 to get 142 with 2 under 8 of 284
Add the three rows to obtain 17608

Answer 3

I don't know what you mean. Are you asking how to multiply two 3-digit numbers together without a calculator? Or how to use 100x100 as a short cut for the answer? If it's the latter case, then I suppose (124 * 142) = (100 + 24)(100 + 42) = 100^2 + 2400 + 4200 + 24*42, or 100^2 + 6600 + 1008 = 100^2 + 7608 = 17,608.

Answer 4

ok for example 124*142
u have to do this step by step:
simply we consider 142 as 142=100+40+2
first multiple 124*2 so it is 124*2=248 (1)
second 124*40=4960 (2)
and finally 124*100=12400 (3)
now by adding (1),(2) and (3) with each other
(1)+(2)+(3)= 17608 is ur answer
u have to know that steps 2 and 3 are always simple because u always have zero in it

Answer 5

Here's an alternate method.
124
x146 =
100*100 =
10,000 + 100*40 =
14,000 + 20*100 =
16,000 + 100*2 =
16,200 + 20*40 =
17,000 + 4*100 =
17,400 + 20*2 =
17,440 + 4*40 =
17,600 + 4*2 =
17,608

Answer 6

..............124*
..............142
............. -----
..............248
............496
..........124
........------------
......... 17608

Answer 7

124
X142
__124
___496
____248
_______
__17,608