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Balintionut153
a fost răspuns

calculeaza rapid grupand convenabil factorii
a 20x42x5
b 4x28x150
c 4x2x15x5x50
d 11x32x2x5

Răspuns :

MorozAndrei

Răspuns:

a) 20x45x5=

=20x5x45=

=100x45=

=4500

b) 4x28x150=

=4x150x28=

=600x28=

=16800

c)4x2x15x5x50=

=2x50x4x5x15=

=100x20x15=

=20x15x100=

=300x100=

=30000

d) 11x32x2x5=

=2x5x32x11=

=10x32x11=

=320x11=

=3520

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