Toán Lớp 5: Tính bằng cách thuận tiện nhất
23,4+15,7+6,6=
10,82+5,8+9,18+14,2
>,<,=
11,75......6,3+5,4. b,13,6+6,4......20
7,5+1,7.....8,2
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Toán Lớp 5: Tính bằng cách thuận tiện nhất
23,4+15,7+6,6=
10,82+5,8+9,18+14,2
>,<,=
11,75......6,3+5,4. b,13,6+6,4......20
7,5+1,7.....8,2
Comments ( 2 )
23,4+15,7+6,6=
(23,4+6,6)+15,7
30+15,7
45,7
10,82+5,8+9,18+14,2
(10,82+9,19)+(5,8+14,2)
20+20
40