学练优六年级上册数学答案(六年级上册数学脱式计算题及答案)

六年级数学脱式计算带过程带答案 急急急 1.6÷ 3/8 – 3/8 ÷6 =1/6x(3/8-3/8)=1/6x0=02.4/7 × 5/9 + 3/7 × 5/9 =(4/7+3/7)x5/9=1x5/9=5/93.5/2 -（ 3/2 + 4/5 ）=5/2-3/2-4/5=1-4/5=1/54.6 ×（ 1/2 + 2/3 ）=6x1/2+6x2/3=3+4=75.8 × 4/5 + 8 × 11/5=8x(4/5+11/5)=8x3=24 6.31 × 5/6 – 5/6 =(31-1)x5/6=30x5/6=257.4/5 × 25/16 + 2/3 × 3/4 =5/4+1/2=5/4+2/4=7/48.101 × 1/5 – 1/5 × 21 =(101-21)x1/5=80x1/5=16