一、口算。
56 + 38 = 44 ÷ 2 = 92 × 0 =
0 ÷ 57 = 75 ÷ 5 = 12 × 4 =
36 × 2 = 190 + 16 = 500 × 3 =
150 ÷ 5 = 421 × 2 = 104 × 6 =
850 - 250 = 246 ÷ 6 = 120 × 8 =
180 ÷ 2 = 130 × 3 = 265 ÷ 5 =
816 ÷ 8 = 320 ÷ 2 = 890 - 78 =
80 + 132 = 330 × 5 = 636 ÷ 3 =
56 + 38 = 44 ÷ 2 = 92 × 0 =
0 ÷ 57 = 75 ÷ 5 = 12 × 4 =
36 × 2 = 190 + 16 = 500 × 3 =
150 ÷ 5 = 421 × 2 = 104 × 6 =
850 - 250 = 246 ÷ 6 = 120 × 8 =
180 ÷ 2 = 130 × 3 = 265 ÷ 5 =
816 ÷ 8 = 320 ÷ 2 = 890 - 78 =
80 + 132 = 330 × 5 = 636 ÷ 3 =
答案
一、94 22 0
0 15 48
72 206 1500
30 842 624
600 41 960
90 390 53
102 160 812
212 1650 212
0 15 48
72 206 1500
30 842 624
600 41 960
90 390 53
102 160 812
212 1650 212
二、计算下面各题。
155 × 4 - 243 466 + 203 × 2 269 + (454 - 185)
756 - 289 + 137 555 - 122 × 3 312 + (105 + 119)
155 × 4 - 243 466 + 203 × 2 269 + (454 - 185)
756 - 289 + 137 555 - 122 × 3 312 + (105 + 119)
答案
二、377 872 538
604 189 536
604 189 536
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