1.Tính:a) 83,56+92,38 59,66+25,8 384,5 +72,96 482 +37,99.b) 42,34–19,682; 300–74,621; 1000–96,888. 234,12 –21,8c) 32,8x16 12,7x4,5 0,49x2,6 32,13...
Đọc tiếp
1.Tính:
a) 83,56+92,38 59,66+25,8 384,5 +72,96 482 +37,99.
b) 42,34–19,682; 300–74,621; 1000–96,888. 234,12 –21,8
c) 32,8x16 12,7x4,5 0,49x2,6 32,13 x0,7
a: 83,56+92,38=175,94
59,66+25,8=85,46
348,5+72,96=421,46
482+37,99=519,99
b: 42,34-19,682=22,658
300-74,621=225,379
1000-96,888=903,112
234,12-21,8=212,32