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口算.1520+180=105×2=6+3×2=420-170=45×3=7×7-1=750+1250=350×2=9×9+3=1000-340=123×2=55×1+8=920-900=1360×2=108×2+15=570+230=980×0=200+20×5=360+640=209×3=27÷3-9=621-20=400×5=(1500-800)+7=1500-500=104×4=168+168×0=1230+1700=160×5=5

题目详情
口算.
1520+180=105×2=6+3×2=420-170=
45×3=7×7-1=750+1250=350×2=
9×9+3=1000-340=123×2=55×1+8=
920-900=1360×2=108×2+15=570+230=
980×0=200+20×5=360+640=209×3=
27÷3-9=621-20=400×5=(1500-800)+7=
1500-500=104×4=168+168×0=1230+1700=
160×5=55×0×7=
口算.
1520+180=105×2=6+3×2=420-170=
45×3=7×7-1=750+1250=350×2=
9×9+3=1000-340=123×2=55×1+8=
920-900=1360×2=108×2+15=570+230=
980×0=200+20×5=360+640=209×3=
27÷3-9=621-20=400×5=(1500-800)+7=
1500-500=104×4=168+168×0=1230+1700=
160×5=55×0×7=

1520+180=105×2=6+3×2=420-170=
45×3=7×7-1=750+1250=350×2=
9×9+3=1000-340=123×2=55×1+8=
920-900=1360×2=108×2+15=570+230=
980×0=200+20×5=360+640=209×3=
27÷3-9=621-20=400×5=(1500-800)+7=
1500-500=104×4=168+168×0=1230+1700=
160×5=55×0×7=
1520+180=105×2=6+3×2=420-170=45×3=7×7-1=750+1250=350×2=9×9+3=1000-340=123×2=55×1+8=920-900=1360×2=108×2+15=570+230=980×0=200+20×5=360+640=209×3=27÷3-9=621-20=400×5=(1500-800)+7=1500-500=104×4=168+168×0=1230+1700=160×5=55×0×7=1520+180=105×2=6+3×2=420-170=1520+180=105×2=6+3×2=420-170=45×3=7×7-1=750+1250=350×2=45×3=7×7-1=750+1250=350×2=9×9+3=1000-340=123×2=55×1+8=9×9+3=1000-340=123×2=55×1+8=920-900=1360×2=108×2+15=570+230=920-900=1360×2=108×2+15=570+230=980×0=200+20×5=360+640=209×3=980×0=200+20×5=360+640=209×3=27÷3-9=621-20=400×5=(1500-800)+7=27÷3-9=621-20=400×5=(1500-800)+7=1500-500=104×4=168+168×0=1230+1700=1500-500=104×4=168+168×0=1230+1700=160×5=55×0×7=160×5=55×0×7=
▼优质解答
答案和解析
1520+180=1700105×2=2106+3×2=12420-170=250
45×3=1357×7-1=48750+1250=2000350×2=700
9×9+3=841000-340=660123×2=24655×1+8=63
920-900=201360×2=2720108×2+15=231570+230=800
980×0=0200+20×5=300360+640=1000209×3=627
27÷3-9=0621-20=601400×5=2000(1500-800)+7=707
1500-500=1000104×4=416168+168×0=1681230+1700=2930
160×5=80055×0×7=0
1520+180=1700105×2=2106+3×2=12420-170=25045×3=1357×7-1=48750+1250=2000350×2=7009×9+3=841000-340=660123×2=24655×1+8=63920-900=201360×2=2720108×2+15=231570+230=800980×0=0200+20×5=300360+640=1000209×3=62727÷3-9=0621-20=601400×5=2000(1500-800)+7=7071500-500=1000104×4=416168+168×0=1681230+1700=2930160×5=80055×0×7=01520+180=1700105×2=2106+3×2=12420-170=2501520+180=17001520+180=1700105×2=210105×2=2106+3×2=126+3×2=12420-170=250420-170=25045×3=1357×7-1=48750+1250=2000350×2=70045×3=13545×3=1357×7-1=487×7-1=48750+1250=2000750+1250=2000350×2=700350×2=7009×9+3=841000-340=660123×2=24655×1+8=639×9+3=849×9+3=841000-340=6601000-340=660123×2=246123×2=24655×1+8=6355×1+8=63920-900=201360×2=2720108×2+15=231570+230=800920-900=20920-900=201360×2=27201360×2=2720108×2+15=231108×2+15=231570+230=800570+230=800980×0=0200+20×5=300360+640=1000209×3=627980×0=0980×0=0200+20×5=300200+20×5=300360+640=1000360+640=1000209×3=627209×3=62727÷3-9=0621-20=601400×5=2000(1500-800)+7=70727÷3-9=027÷3-9=0621-20=601621-20=601400×5=2000400×5=2000(1500-800)+7=707(1500-800)+7=7071500-500=1000104×4=416168+168×0=1681230+1700=29301500-500=10001500-500=1000104×4=416104×4=416168+168×0=168168+168×0=1681230+1700=29301230+1700=2930160×5=80055×0×7=0160×5=800160×5=80055×0×7=055×0×7=0