Question

017. Multiplication of 3 and -4
(d) 7
(a) -7
(6) 12
(c)-12
Q18. Multiplication of -2,-7 and -10 gives
(a) - 34
(b) 19
(c)-140
(d) 90​

Answer 1

Answer:

17) -12

18) -140

Step-by-step explanation:

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Answer 2

Q. 17 :

3 × –4 = –12

Option (c) : -12

is the right one

Q. 18 :

- 2 × - 7 × - 10 = ?

-2 × - 7 = 14 [ - × - = + ]

14 × - 10 = - 140 [ + × - = - ]

Option (c) : -140

is the right one

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