口算43×2=18×5=321×3=2×462=15×5=l21×7=8×12=22×4=232×4=4×16=17..[97%]

口算43×2=18×5=321×3=2×462=15×5=l21×7=8×12=22×4=232×4=4×16=173×3=5×142=

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直接写出得数.300×7=16×4=402×3=200÷4-30=540÷9=120×5=59+17=50+..[97%]

直接写出得数.300×7=16×4=402×3=200÷4-30=540÷9=120×5=59+17=50+250×0=804÷4=96÷3=140-18=18+14×3=

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4/5,16/17,16/13,64/37,()A.64/25B.64/21C.35/26D.75/23[97%]

4/5,16/17,16/13,64/37,()A.64/25B.64/21C.35/26D.75/23

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4/5,16/17,16/13,64/37,()A.64/25B.64/21C.35/26D.75/23[97%]

4/5,16/17,16/13,64/37,()A.64/25B.64/21C.35/26D.75/23

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4/5,16/17,16/13,64/37,()A.64/25B.64/21C.35/26D.75/23[97%]

4/5,16/17,16/13,64/37,()A.64/25B.64/21C.35/26D.75/23

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4/5,16/17,16/13,64/37,()A.64/25B.64/21C.35/26D.75/23[97%]

4/5,16/17,16/13,64/37,()A.64/25B.64/21C.35/26D.75/23

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4/5,16/17,16/13,64/37,()A.64/25B.64/21C.35/26D.75/23[97%]

4/5,16/17,16/13,64/37,()A.64/25B.64/21C.35/26D.75/23

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4/5,16/17,16/13,64/37,()A.64/25B.64/21C.35/26D.75/23[97%]

4/5,16/17,16/13,64/37,()A.64/25B.64/21C.35/26D.75/23

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直接写出得数.16×2=19×3=3×15=17×5=23×4=12×5=30×2+3=3×8+5=-数学..[97%]

直接写出得数.16×2=19×3=3×15=17×5=23×4=12×5=30×2+3=3×8+5=

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20,4516,2,8,44,(  ),9,21,3。A.17 B.7 C.18 D.8[96%]

20,4516,2,8,44,(  ),9,21,3。A.17 B.7 C.18 D.8

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