Question

va rogggg sa ma ajutați la ex 13,14,15 va rog ​

Answer 1

13. a) -24 x (+13 ) = -312 ( a x b)
+ 13 x (-24) = -312 (b x a)

b) 104 x (-5) = -520 (a x b)
-5 x 104 = -520 (b x a)

c) -11 x (-13) = 143 (a x b)
-13 x (-11) = 143 (b x a)

d) 0 x (-2020) = 0 (a x b)
-2020 x 0 = 0 (b x a)


e) -19 x 0 = 0 (a x b)
0 x (-19) = 0 (b x a)

f) -2 x (+31) = -62 (a x b)
+31 x (-2) = -62 (b x a)