[资料]四年级口算题卡
23×40= 12×8= 760×20= -= 18×30= 27,32= 7500? 500= 370×530,70= 60?30= 48,27= 200= 420,90= 70×50= 45001= 400?50=
+=5000? 50, 100×5400? 9= 570?30=
+= 91, 9×800= 900?30=
+= 753,299, 300×7= 420?70=
+= 810?7000? 70, 390? 13= 180?90= 90= 200? 40, 5600?700= 480?60=
100?20= 4800?12= 240? 40= 80?40= 240?80= 140×7= 3500? 7= 720?60= 150?30= 280×3= 370,560= 160?80=
360?90= 50×11= 960?60= 420?520,490=
320?40= 60= 7200+900= 450,90,
160?40= 125×8= 900? 50=80,330,
180?90= 6600?600= 11×420?10 = 70×700,
320?80= 80= 620?20= 7000? 70, 4000
630?70= 720?3600? 400= 240?80= ? 80, 2400?
90== 530,70= 200= 400?40=
60?10= 9600? 30= 420,90, 63 0?30=
450?90= 180? 30= 170,320, 950?10 =
210?70= 35×2= 520,260= 740?10=
450?90= 13×6= 910,190= 840?30= 350×2= 360?60= 35×200, 680?40=
150?50= 250×6= 22×200, 82 2?6=
400?50=410-201= 8800? 400= 9300380?20 =
360?60= 48×20= ? 300= 6×300, 620?10=
720?80= 390+140= 1800? 200, 9300300?50=
? 30, 350?70= 24×50= 140?70=
280? 40, 100?50= 4000?50= 300?10=
304,199, 80?40= 420,90= 940?10 = 7×700= 390? 26, 200?40= 360?40=
1250? 50, 21×203+98= 140?70= 840?30= 40, 240+570= 160?40= 680?40=
6600? 220= 370+580= 180?60= 82 2?6= 760,198= 910,370= 540?60= +=
40?20= 270,190=
-= -= 5•a•b, 48?4= += += 640?16= 98,17,
+= 39?3= -= 103×40,
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