Question

calculeazaaaaa dau coronaaaaaaaa​

Answer 1

Răspuns:

a) 42×40=42×(10×4)

=(42×10)×4

=420×4

=1.680

b)52×80= 52×(10×8)

=(52×10)×8

=520×8

=4.160

c) 42×400=42×(100×4)

=(42×100)×4

=4200×4

= 16.800

d) 52×800= 52×(100×8)

= (52×100)×8

=5200×8

=41.600

e)58×30= 58×(10×3)

=(58×10)×3

=580×3

=1.740

f)67×50=67×(10×5)

=(67×10)×5

=670×5

=3.350

g) 58×300=58×(100×3)

=(58×100)×3

=5800×3

=17.400

h) 67×500= 67×(100×5)

=(67×100)×5

=6700×5

=33.500

Explicație pas cu pas:

COROANA PLSSSSSSS TE ROG FF MULTTTT