作业帮4.23*1.08+0.423*9.2和9.8*3.6+0.1*7.2用递等式简便计算
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/04 17:25:44
4.23*1.08+0.423*9.2和9.8*3.6+0.1*7.2用递等式简便计算
4.23*1.08+0.423*9.2和9.8*3.6+0.1*7.2用递等式简便计算
4.23*1.08+0.423*9.2和9.8*3.6+0.1*7.2用递等式简便计算
4.23*1.08+0.423*9.2
=4.23*1.08+4.23*0.92
=4.23*(1.08+0.92)
=4.23*2
=8.46
9.8*3.6+0.1*7.2
=9.8*3.6+0.2*3.6
=3.6*(9.8+0.2)
=3.6*10
=36
4.23*1.08+0.423*9.2
=4.23×1.08+4.23×0.92
=4.23×（1.08+0.92）
=4.23×2
=8.46
9.8*3.6+0.1*7.2
=9.8×3.6+0.1×2×3.6
=3.6×（9.8+0.1×2）
=3.6×(9.8+0.2)
=3.6×10
=36