1.1.算一算，说一说。算一算，说一说。111114141 11 44 4114=44+1 1 01 5 41110=11044110=154161618181006080481006080482881.1.算一算，说一说。算一算，说一说。2.2.根据根据12122 22424，请直接写出下面算式的结果。，请直接写出下面算式的结果。12122020 2401201202 2 2401201202020 24001212200200 2400261026010426036448733648301440336144017764.4.选数填空。选数填空。10102020303040405050606070708080()()()()800800()()()()35003500()()()()28002800()()()()12001200()()()()42004200()()()()240024001080206050706070407030802040304040605.5.用竖式算一算。用竖式算一算。3636434315483 6 4 31 0 81 4 41 5 4 81919232
