Question

Grupeaza convenabil factorii pentru a calcula rapid .
exemplu:561×5×2=561×(5×2)=561×10=5.610
2×783×5=
4×75×25=
25×4×84=
2×798×5=
5×996×2=
Rezolvati dupa exemplu acela de sus
Va rog dau coroana

Answer 1

2x783x5=783x(5x2)=783x10=7830
4x75x25=75x(4x25)=75x100=7500
25x4x84=(25x4)x84=100x84=8400
2x798x5=(2x5)x798=10x798=7980
5x996x2=(5x2)x996=10x996=9960

Answer 2

2×5×783=7830
10×783=7830

25×4×75=7500
100×75=7500

25×4×84=8400
100×85=8400

2×5×798=7980
10×798=7980

2×5×996=9960
10×996=9960

Sper ca te-am ajutat!