14-7.4=6.6, 1.92÷0.04=48, 0.32×500= 160, 0.65+4.35= 5

10-5.4=4.6, 4÷20=0.2, 3.5×200=700, 1.5-0.06= 1.44

0.75÷ 15=0.05, 0.4×0.8=0.32, 4×0.25= 1, 0.36+ 1.54=2

1.0 1×99=99.99, 420÷35= 12, 25× 12=300, 135÷0.5=270

3/4 + 1/4 = 1, 2 + 4/9 =22/9, 3 - 2/3 =7/3, 3/4 - 1/2= 1/4

1/6 + 1/2 - 1/6 = 1/2, 7.5-(2.5+3.8)= 1.2, 7/8 + 3/8 =5/4

3/ 10 + 1/5 = 1/2, 4/5 - 7/ 10 = 1/ 10, 2 - 1/6 - 1/3 = 1.5

0.5 1÷ 17=0.03, 32.8+ 19=5 1.8, 5.2÷ 1.3=4, 1.6×0.4= 0.64

4.9×0.7=3.43, 1÷5=0.2, 6÷ 12=0.5, 0.87-0.49=0.38