8个0.25相乘再乘9个8相乘再乘10个5

更新时间2022-04-10 19:40:47

0.25^8×8^9×5^10

=[2^(-2)]^8×(2^3)^9×5^10

=2^(-2×8+3×9)×5^10

=2^11×5^10

=2×(2^10×5^10)

=2×(2×5)^10

=2×10^10

=200 0000 0000