Răspuns :
4|
a)8×1000 , 5×1000 , 20×1000,70×1000,400×1000,900×1000
b)8×100×10,5×100×10,20×100×10,70×100×10,400×100×10,900×100×10
5|
a)25x triunghi=250 obtinem valoarea triunghiului
250:25=10 (triunghi)
10x10=100 (cerc)
100x10=1 000 (patrat)
42x10x100=42x1 000
a)8×1000 , 5×1000 , 20×1000,70×1000,400×1000,900×1000
b)8×100×10,5×100×10,20×100×10,70×100×10,400×100×10,900×100×10
5|
a)25x triunghi=250 obtinem valoarea triunghiului
250:25=10 (triunghi)
10x10=100 (cerc)
100x10=1 000 (patrat)
42x10x100=42x1 000