Question

37×1点5+6点3×3点七简便计算？

Answer 1

37×1.5+6.3×3.7
=37×1.5+0.63×37
=37×（1.5+0.63）
=37×2.13
=37×（2+0.1+0.03）
=37×2+37×0.1+37×0.03
=74+3.7+1.11
=77.7+1.11
=78.81

Answer 2

37×1.5+6.3×3.7
=37×（1.5+0.63）
=37×2.13
=40×2.13-3×2.13
=4×21.3-6.39
=85.2-7+0.61
=78.81

Answer 3

37×1.5+6.3×3.7
=（3.7×3）×0.5+（3.7×3）×2.1
=11.1×（0.5+2.1）
=11.1×2.6
=28.86

Answer 4

37x1.5+6.3x3.7
=3.7x15+6.3x3.7
=3.7x(15+6.3)
=3.7x21.3
=(4-0.3)x21.3
=4x21.3-0.3x21.3
=85.2-6.39
=78.81。