Answer:
a) 12xy
b) 30pqr
Step-by-step explanation:
Question (a) :
Question (b) :
a) 3x × 4y
=========
= 3x × 4y
= 3 × 4 × x × y
= 12 × xy
= 12xy
b) 2p × 3q × 5r
=============
= 2p × 3q × 5r
= 2 × 3 × 5 × p × q × r
= 30 × pqr
= 30pqr
Some similar math's:
i) 15x × 3q × 9s
============
= 15x × 3q × 9s
= 15 × 3 × 9 × x × q × s
= 405 × xqs
= 405xqs
ii) 13u × 9i × 3w
= 13u × 9i × 3w
= 13 × 9 × 3 × u × i × w
= 351 × uiw
= 351uiw
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