Răspuns :
1. a) 2,3 × 10 = 23
b) 1, 73 × 10 = 17,3
c) 0, 03 × 100 = 00, 3
d) 12, 51 × 100 = 125, 1
2. a) 1,5 × 4 =6,0
b) 2, 75 × 3 = 8, 25
c) 24, 21 × 17 = 221, 57
ex 1:
a)2,3×10=23;b)1,73×10=17.3;c)0,03×100=3;d)12,51×100=1,251.
ex 2:
a)1,5×4=6;b)2,75×3=8,25;c)24,21×17=411,57.