Răspuns :

Răspuns:

23+(8x8+6x6):10x2=

=23+(64+36):20

=23+100:20

=23+5

=28

(6x8:4-20:5x3+6x7:1):(18:3:3+32:8)=

=(48:4-4x3+42:1):(6:3+4)

=(12-12+42):(2+4)

=(0+42):6

=42:6

=7

(8×7+7×7+6×7)-(24:3+80:8+35:7) =

=(56+49+42)-(8+10+5)

=(105+42)-(18+5)

=147-23

=124

(9×3:3+40:8):2+899=

=(27:3+5):2+899

=(9+5):2+899

=14:2+899

=7+899

=906

(64:8:2+3×10:6)×(63:7-24:6)+378=

=(8:2+30:6)x(9-4)+378

=(4+5)x5+378

=9x5+378

=45+378

=423

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