Question

直接写得数 1-0.01= 0.8+4.7= 3.2-1.2= 6.9+3.1= 5+1.6= 5.5+2.5= 2-0.4= 2.3+1.7= 0

直接写得数 1-0.01= 0.8+4.7= 3.2-1.2= 6.9+3.1= 5+1.6= 5.5+2.5= 2-0.4= 2.3+1.7= 0.85-0.45= 3.15-0.15= 4.7×10= 1.26÷100= 0.46×100= 4.68×1000= 0.68÷10= 6.28÷1000= 2.3×3= 1.5×4= 1.25×0.8= 0.7×4= 4.8÷1.2= 4.2÷13= 4.8÷4= 5.2÷4= 0.32÷0.04= 7.2÷0.4= 3.4÷0.17=

Answer 1

1-0.01=0.99	0.8+4.7=5.5	3.2-1.2=2	6.9+3.1=10
5+1.6=6.6	5.5+2.5=8	2-0.4=1.6	2.3+1.7=4
0.85-0.45=0.4	3.15-0.15=3	4.7×10=47	1.26÷100=0.0126
0.46×100=46	4.68×1000=4680	0.68÷10=0.068	6.28÷1000=0.00628
2.3×3=6.9	1.5×4=6	1.25×0.8=1	0.7×4=2.8
4.8÷1.2=4	4.2÷13= 21 65	4.8÷4=1.2	5.2÷4=1.3
0.32÷0.04=8	7.2÷0.4=18	3.4÷0.17=20