Multiply :
15×3
Step 1 : First multiply ones place
5×3=15
Write 5 at ones place column
Step 2 : Multiply tens place
1×3=3
Add 3 with 1 as carry 1taken from ones place
⇒3+1=4
Write 4 at tens place column
so we get,
15×345
Hence, required solution is 45.
Fill in the blanks :
Exponential
Form
Give expressions in the following cases.
(a) 11 added to 2m
(b) 11subtracted from 2m
(c) 5 times y to which 3 is added
(d) 5times y from which 3 is subtracted
(e) yis multiplied by − 8
(f) yis multiplied by − 8 and then 5 is added to the result
(g) yis multiplied by 5 and the result is subtracted from 16
(h) yis multiplied by − 5 and the result is added to 16
Observe the patterns and fill in the blanks:
63×10=63×1×10=630×1
63×20=63×2×10=630×2
63×30=63×3×10=630×3
63×40=63×4×10=_____________________
63×50=63×5×10=_____________________