Question

Scrie inmultirile sub forma unor adunari repetate,apoi calculeaza: a)3x230=............+............+............=............ b)4x140=............+............+............+............=............ c)2x450=............+...........=............ d) 5x123=............+............+............+............+............=............

Answer 1

a) 230+230+230=690   b)140+140+140+140=560   c)450+450=900 d)123+123+123+123+123=615

Answer 2

a) 3x230=230+230+230=460+230=690
b) 4x140=140+140+140+140=280+140+140=420+140=560
c) 2x450=450+450=900
d) 5x123=123+123+123+123+123=246+123+123+123=369+123+123=492+123=615