【導(dǎo)讀】720÷9=600÷3=9×0×20=640÷8=800÷8=。880÷8=9×500=42×3=90÷3=180÷3=。300÷5=48÷4=930÷3=64÷8×5=800÷4=。70×7=×5=300÷6=0×37=300×3=。840÷4=2×14=140÷2=660÷6=7×800=。96÷3=2×330=200÷4=50×6=60×4. 620÷2=6×800=÷7=960÷3=63. 72÷9÷4=7×80=24×2=÷6=5. 250÷5=880÷2=56÷7÷2=400÷4=1×÷3=240×2=400÷8=480÷8=50. 240÷4=900÷9=810÷9=630÷9=330×3. 480÷8=18+2×9=300÷5=420÷2=820÷2. ÷5=400÷4=900×5=200÷4=16+4. 200×4=540÷6=0÷49=120×4=640÷8=。20×3×6=720÷9=660÷2=700×5=660÷600÷6=40×2×4=22×3=800÷8=720÷320÷4=900÷3=30×8+8=84÷4=640÷660÷3=43+38=720÷8=800÷8=120×4=