12.48-21.28÷7.6×3.1 要脱试
1个回答
=12.48-2.8x3.1
=12.48-8.68
=3.8
相关问题
12.48-21.28÷7.6x3.1 计算
16÷8= 36÷6= 5×9= 81÷9= 7×3= 72÷8= 6×4= 7×3= 48÷6= 28÷7= 42÷6
①6-(12)÷(-3) ②3×(-4)+(-28)÷7 ③4.7-(-8.9)-7.5+(-6)
8 21 × 7 16 = 2 3 ÷14= 26× 12 13 = 14 13 ÷28= 12× 4 3 = 9 8
3.86—9÷7.2 0.85×(21.9--7.6÷4) 3.78÷3.6×(0.26+0.3) 脱式计算
脱式计算:1/3÷7/9×5/6 12/5÷(3/4+1/3)-1/3 15÷[5/7×(2/3-1/5)]
计算下面各题. 657+360÷45×19 21× 3 4 ÷ 4 5 × 8 21 28.6-(12.6+18.4)÷
直接写得数. 250×4= 12.3+0.7= 96÷6= 8×21×125= 560÷28= 23×46×0= 20÷
脱式计算 30-15÷3 36÷4-6 56+34-28 (100-99)×7 45-45÷9 72-3×7.
直接写得数.51-28=48÷8=27÷7=34÷5=52÷6= 7×6-14=8×7+45= 5+3×6=5×9-44