4x10³= 4000
3.7x10¹=37
1.4x10⁵=140000
3.57x10⁻²=0,0357
4x10⁻¹= 0,4
6x10⁻³= 0,006
4.17x10⁻⁵= 0,0000417
solo un número
400x20 000= 8x10^6=8000000
37x2 000=74x10^3=74000
(4x10³)(6x10⁻⁵)= 2/3x10^-2= 0,0066
(3x10⁻¹)(6x10⁻⁸)=1/2 x 10^-7=0,00000005
(6.7x10³)(4.0x10⁵)=26,8x10^8=2.680.000.000
(3.7x10⁻⁵)(200)= 7,4 x 10^-3= 0,0074
(4x10⁻³)²= 16/10^6= 0,000016
(3x10⁶)³=27x10^6=27.000.000
(6000)x (10⁻⁷)=0,0006
(4)(300)(2x10⁻⁷)= 2400/10^-7=0,00024
7000÷(3.5x10⁻³)=2.000.000
60÷30000 = 0,002