2024年3月14日发(作者：傅希)
乘法交换律的脱式计算,五年级上册100道。
35 x39 x20= 25x73x20= 25 x77 x 20= 25 X81 X 20=
25 x77 X 32= 45x37x20= 25 x 57 x 40= 25 x87 x 36=
25 x73 x16 =
25x43x28 =
15x29x20=
15x63x20=
25x43x36=
25x17x28=
25x17x16=
45x23x20=
25x37x40=
35x27x20=
25x89x20=
25x49x12=
25x99x40=
15x73x20=
25X81x24=
25x23x40=
15x99x20=
25x53x28=
25x89*32=
25x29x32=
25 x 97 x 32=
25x71x12 =
25 x83 x20 =
25x79x12=
25 x83 x28=
25x77x36=
25x23X36=
25x47x32=
75x19x12=
25x61x20=
25 x41 x 12=
15X33x20=
25x79 x32=
25x97x16=
75x65x12=
25x23x28=
75x77x12=
75x69x12=
25 x 83 x16=
25x65x32 =
25X53X16= 25x57X24= 25*39x16 = 25x81x12=
25x47x24= 45x87x20= 25x67x40= 25x95x24=
45x61x20= 15x61x20= 25 x41 x40 = 35 x41 x20=
45X53x20=
25X47x20=
25 x49 x 36=
25x15x24=
25x69x20=
15x91X20=
35x51x20=
25X43x32=
25x19x20=
45X67x20=
25x15x32=
35 x57x20=
45 x51 X 20=
25x77x24=
25x99x12=
25X91x16=
15X43x20=
25x99x20=
25x31x20=
25X91x36=
25 x37 x24=
25 x97x 12=
15 x77X20=
25x17x20=
25x11X32=
15x53x20=
25x27X20=
25x61x32=
25x13x24=
25x73X12=
45 x77 x 20=
25 X41X32 =
25 x77 x28=
15x87 x20=
25x87x40=
25x21x36=
25x91x24=
25x65 x28=
35x29x20=
2024年3月14日发(作者：傅希)
乘法交换律的脱式计算,五年级上册100道。
35 x39 x20= 25x73x20= 25 x77 x 20= 25 X81 X 20=
25 x77 X 32= 45x37x20= 25 x 57 x 40= 25 x87 x 36=
25 x73 x16 =
25x43x28 =
15x29x20=
15x63x20=
25x43x36=
25x17x28=
25x17x16=
45x23x20=
25x37x40=
35x27x20=
25x89x20=
25x49x12=
25x99x40=
15x73x20=
25X81x24=
25x23x40=
15x99x20=
25x53x28=
25x89*32=
25x29x32=
25 x 97 x 32=
25x71x12 =
25 x83 x20 =
25x79x12=
25 x83 x28=
25x77x36=
25x23X36=
25x47x32=
75x19x12=
25x61x20=
25 x41 x 12=
15X33x20=
25x79 x32=
25x97x16=
75x65x12=
25x23x28=
75x77x12=
75x69x12=
25 x 83 x16=
25x65x32 =
25X53X16= 25x57X24= 25*39x16 = 25x81x12=
25x47x24= 45x87x20= 25x67x40= 25x95x24=
45x61x20= 15x61x20= 25 x41 x40 = 35 x41 x20=
45X53x20=
25X47x20=
25 x49 x 36=
25x15x24=
25x69x20=
15x91X20=
35x51x20=
25X43x32=
25x19x20=
45X67x20=
25x15x32=
35 x57x20=
45 x51 X 20=
25x77x24=
25x99x12=
25X91x16=
15X43x20=
25x99x20=
25x31x20=
25X91x36=
25 x37 x24=
25 x97x 12=
15 x77X20=
25x17x20=
25x11X32=
15x53x20=
25x27X20=
25x61x32=
25x13x24=
25x73X12=
45 x77 x 20=
25 X41X32 =
25 x77 x28=
15x87 x20=
25x87x40=
25x21x36=
25x91x24=
25x65 x28=
35x29x20=