ajutor va rog multtttt!!!!!!!!
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Răspuns:
11. 8×10= 80 (lei 10 carti)
13×10=130 (lei 10 stilouri)
13. a) 10×10= 100
100×10= 1000
400×10= 4000
b) 100+100= 200
100+300=400
100+990=1090
c) 40×100=4000
380×100=38000
530×100=53000
d) 4000-1000=3000
38000-1000= 37000
53000-1000= 52000