TỚNH NHANH H) 48.19 + 48.115 + 134.52 A) 58.75 + 58.50 – 58.25 B) 27.3...

Bài 1: Tớnh nhanh

h) 48.19 + 48.115 + 134.52

a) 58.75 + 58.50 – 58.25

b) 27.39 + 27.63 – 2.27

i) 27.121 – 87.27 + 73.34

j) 125.98 – 125.46 – 52.25

c) 128.46 + 128.32 + 128.22

d) 66.25 + 5.66 + 66.14 + 33.66

k) 136.23 + 136.17 – 40.36

e) 12.35 + 35.182 – 35.94

l) 17.93 + 116.83 + 17.23

f) 35.23 + 35.41 + 64.65

m) 19.27 + 47.81 + 19.20

g) 29.87 – 29.23 + 64.71

n) 87.23 + 13.93 + 70.87

V. TÍNH TỔNG