Вычесление (3класс), 4×23=4×(20+3)=4×20+4×3=_+_=_
7×15=_×(_+_)=_×_+_×_=_+_=_
6×17=_×(_+_)=_×_+_×_=_+_=_
3×31=_×(_+_)=_×_+_×_=_+_=_
65÷5=(_+_)÷_=_÷_+_÷_=_+_=_
56÷4=(_+_)÷_=_÷_+_÷_=_+_=_

Question

Математика: Вычесление (3класс), 4×23=4×(20+3)=4×20+4×3=_+_=_ 7×15=_×(_+_)=_×_+_×_=_+_=_ 6×17=_×(_+_)=_×_+_×_=_+_=_ 3×31=_×(_+_)=_×_+_×_=_+_=_ 65÷5=(_+_)÷_=_÷_+_÷_=_+_=_ 56÷4=(_+_)÷_=_÷_+_÷_=_+_=_

Ehsusfmivwxjswbj · Answer

7×15=7×(10+5)=7×10+7×5=70+35=105 6×17=6×(10+7)=6×10+6×7=60+42=102 3×31=3×(30+1)=3×30+3×1=90+3=9365÷5=(60+5)÷5=60÷5+5÷5=12+1=1356÷4=(40+16)÷4=40÷4+16÷4=10+4=14...