五年级数学下册口算题(已排好版)(共5页).docx

1740 10063 3.21.68 2.80.4 147.4 1.920.04 0.32500 0.654.35 105.4 420 3.5200 1.50.060.7515 0.40.8 40.25 0.361.54 1.0199 42035 2512 1350.5 3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=1/6 +1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 = 3/10 +1/5 =