文档介绍：六年级数学上册口算题 1 、口算 32× 3= 60× 3= 18× 10= × 100= 6÷ 100= 49× 2= 12× 7= 24× 100= × 100= ÷ 100= 43× 4= 72× 5= × 10= ÷ 10= ÷ 100= 32× 4= 82× 5= × 100= ÷ 100= ÷ 10= 2 、计算 14× 9= × 2= × 200= 23× = × 3= 17× 8=5× = × 40= × 80= × 7= 20× 4= × 4= 100 × = ×2 × 5= 42× 3= × 0=3× = × 40= × 20= × 3= × 40= × 10= 4× = × 2= × 4= × 4= × 40= 10× = × 6= × 7= × 4= 2× = × 4= × 5= × 3= × 8=3× = × 7= × 9= × = × = × = × = × = × = × = × = × = × = × 3= × = × = × = × = 3 、估算它们的结果 × 3≈ × ≈ × ≈ × ≈ × ≈ × 12≈ × ≈ × 6≈ × ≈ 30× ≈ × ≈ × ≈ × ≈ × ≈ 103 × ≈ 4 、计算 × = × 8= × 2= × = ×2× = 4× × = 7× × 0= × × = + ×5= × 8= × 17= × 5= × 2= 3× × 7= × = × = × 4= × 8=5×4× = × = × 10= × = × 7=8× × 5= × × = × + × ( - )× = 5 、计算 × = += × 2= × = × = × = -= × = × 7= × 70= × 5= += × = × = × = × 5= -= 90× = × = × = 6 、计算 × = 43× = × 7= × = × = × = × 5= × = × = × = × = × = × 20= 65× = × = × = × 4= × = × 50= × = 7 、计算 -= × = × = × 200= × = += × 500= × = × 3= 30× = × × = × × = 8 、计算 × = × = × = × 3= × = × 4= × = × 100= 30× = × 2= 2