四年级下册口算题训练
四年级下册口算题训练86+47= 52 × 7 = 80 × 6= 6800-3200 =400 × 8 =
四年级下册口算题训练 86+47= 52 ×7 =80 ×6= 6800-3200 = 400 ×8 =900× 5= 360-240= 270+450= 365+235 =3400-400 =7 ×200 = 800 ×6= 80 ÷4 =240 ÷6 =360 ÷9 = 600 ÷3 = 400÷ 4= 45 ÷9 =2100 ÷7 = 810 ÷6 = 18 ×7 =810 ÷9 =67 +8 = 82 +7 = 104 ×3 =0 ×105= 63 ×3 = 64 ÷2 = 2400÷8= 33÷3= 7×8+2 = 5×6+4= 3×9+5= 6×8+4= 34×2= 3×400=

