Question

求一共六百道小数加减乘除口算题，急！！！顺便把答案也写一下吧

因为我数学考试错了一道口算题，数学老师说一提做十道。暑假两个月六十天，我需要六百道，太狠了！！！

Answer 1

85.9+99.1=185 96.3-66.4=29.9 55.8+33.1=88.9 333.1+666.8=999.9 541.9+60.2=602.1 71.6-36.5=35.1 88.2-66.1=22.1 99.9+100=199.9 55.5-35.1=20.4 999.99-999.9=0.09 52.1+47.9=100 88.8-78.7=10.1 55.2-6.5=48.7 88.9+66.36=155.26 993.9+1.9=995.8 990.1+8.2=998.3 55.5+45.4=99.9 66.1+76.1=142.2 20.1+60.8=80.9 89.9-79.5=10.4 99.3-66.2=33.1 66.22+33.78=100 帮你这些

Answer 2

85.9+99.1=185 96.3-66.4=29.9 55.8+33.1=88.9 333.1+666.8=999.9 541.9+60.2=602.1 71.6-36.5=35.1 88.2-66.1=22.1 99.9+100=199.9 55.5-35.1=20.4 999.99-999.9=0.09 52.1+47.9=100 88.8-78.7=10.1 55.2-6.5=48.7 88.9+66.36=155.26 993.9+1.9=995.8 990.1+8.2=998.3 55.5+45.4=99.9 66.1+76.1=142.2 20.1+60.8=80.9 89.9-79.5=10.4 99.3-66.2=33.1 66.22+33.78=100 887.99

Answer 3

1.1+1.1=2.2

Answer 4

呵呵，是粗心算错的吧？

追问

帮帮偶吧