二年级下册万以内加减法口算.docx

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二年级下册万以内加减法口算.docx

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二年级下册万以内加减法口算.docx

520+490=620-570=1170-280=

470+580=720-590=580+230=

598+204=357+448=250+380=

1072-353=560-390=473+218=

276+361=358+587=743-489=

180+250=530+290=950-570=

450-360=280+540=854-180=

850-580=350+160=840-560=

465-396=602-314=705-538=

523-239=725-536=505-356=

801-309≈202+196≈508+198≈

1198-223≈959-357≈249+123≈

1390+653≈999-303≈401+189≈

452+349≈942-601≈392-182≈

301+288≈653-381≈552+749≈

520+490=620-570=1170-280=

470+580=720-590=580+230=

598+204=357+448=250+380=

1072-353=560-390=473+218=

276+361=358+587=743-489=

180+250=530+290=950-570=

450-360=280+540=854-180=

850-580=350+160=840-560=

465-396=602-314=705-538=

523-239=725-536=505-356=

801-309≈202+196≈508+198≈

1198-223≈959-357≈249+123≈

1390+653≈999-303≈401+189≈

452+349≈942-601≈392-182≈

301+288≈653-381≈552+749≈

520+490=620-570=1170-280=

470+580=720-590=580+230=

598+204=357+448=250+380=

1072-353=560-390=473+218=

276+361=358+587=743-489=

180+250=530+290=950-570=

450-360=280+540=854-180=

850-580=350+160=840-560=

465-396=602-314=705-538=

523-239=725-536=505-356=

801-309≈202+196≈508+198≈

1198-223≈959-357≈249+123≈

1390+653≈999-303≈401+189≈

452+349≈942-601≈392-182≈

301+288≈653-381≈552+749≈

580+250-470650+590-580

==

==

950-570+570450-360+250

==

==

224-130+640350-180+647

==

==

370+160-280350-160-190

==

==

762-314+218700-557+344

==

==

503-239+247712-536+524

==

==

460+280-350630+290-470

==

==

980-570+490450-360+580

==

==

294-130+270350-180+480

==

==

370+160-250240-160+550

==

==

666-354+254700-538+256

==

==

543-239+548728-536+265

==

580+250-470650+590-580

==

==

950-570+570450-360+250

==

==

224-130+640350-180+647

==

==

370+160-280350-160-190

==

==

762-314+218700-557+344

==

==

503-239+247712-536+524

==

==

460+280-350630+290-470

==

==

980-570+490450-360+580

==

==

294-130+270350-180+480

==

==

370+160-250240-160+550

==

==

666-354+254700-538+256

==

==

543-239+548728-536+265

==

580+250-470650+590-580

==

==

950-570+570450-360+250

==

==

224-130+640350-180+647

==

==

370+160-280350-160-190

==

==

762-314+218700-557+344

==

==

503-239+247712-536+524

==

==

460+280-350630+290-470

==

==

980-570+490450-360+580

==

==

294-130+270350-180+480

==

==

370+160-250240-160+550

==

==

666-354+254700-538+256

==

==

543-239+548728-536+265

==

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