Toán Lớp 6: Tính bằng cách thuận tiện:
a) 32 – 34 + 36 – 38 +40 – 42;
b) 386 – (287 +386) – (13+ 0);
c) 332 – (681 +232 – 431).
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Toán Lớp 6: Tính bằng cách thuận tiện:
a) 32 – 34 + 36 – 38 +40 – 42;
b) 386 – (287 +386) – (13+ 0);
c) 332 – (681 +232 – 431).
Comments ( 2 )
b:)))
c:)))