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<p>
multiplication by 2 digits numbers is a multiplication by which multiplier is made by 2 digits.
<br />
<br />
<span style="text-decoration: underline; font-weight: bold;">
Examples
</span>
:
<br />
140
<br />
<span style="text-decoration: underline;">
x14
</span>
<br />
<br />
multiplication by ones
<br />
40
<br />
x
<span style="text-decoration: underline;">
4
</span>
first the multiplier = 14 =10 + 4;
<br />
160 4=ones ;
<br />
10=tens
<br />
<br />
multiplication by tens
<br />
40
<br />
x
<span style="text-decoration: underline;">
10
</span>
<br />
400
<br />
by adding the result we get:
<br />
160
<br />
+
<span style="text-decoration: underline;">
400
</span>
<br />
560
<br />
<br />
rule:to multiply by a two digits number,we multiply by ones first later by the tens and add the product got.
<br />
<br />
<span style="text-decoration: underline;">
example
</span>
:
<br />
calculate
<br />
62
<br />
x
<span style="text-decoration: underline;">
12
</span>
<br />
<br />
12=10+2;
<br />
multiplication by ones=62 x 2=124;
<br />
multiplication by tens=62 x 10=620;
<br />
the product =124 + 620 =744.
<br />
<br />
</p>
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