二年级下学期三位数连加连减练习题100道一[共2页]

804+932-226=199+398+456=207-39=599-481+368=834-776+247=801+60-78=814+551-450=253-97=811-356=75+505-320=481+21-420=401-189=569-366+247=975-883+143=665+239-133=729+80-233=363-94=462-232=306+812-562=28+911-78=401-354=894-862+368=958-669-199=274-46=263+206+352=644+64+123=448-172=322-32-258=312-179+609=537+385-230=310+534-368=438-241=406-249=797-338-274=716-316-274=751-59=449-131-129=657-388-109=302...