Mathematics
Grade5
Easy
Question
Use standard algorithm to find the product of 45 x 79.
- 1,805
- 2,765
- 3,555
- 6,005
Hint:
In this question we have to multiply as two digit number with a two digit number . We can use the distributive law to do this question. Distributive law relates multiplication and addition as follows:
. This law shows that first adding some numbers and the multiplying the sum by some numbers gives same result as first multiplying each number by separately with the number and then adding them
The correct answer is: 3,555
Step by Step Solution:
Step1:
we have to use the standard algorithm to find the multiplication so we will first break the bigger number into small numbers that can be easily multiplied to get the result . So we will divide 79 as follows :
Step2 :
Now we will use the distributive property to multiply this
:
Step3: Now we will do simple multiplication of 
and 
which are as follows :
and 
Step4: Now we have to add these numbers.
So, the answer of the multiplication of to 
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