3.5-2.1= 8.5+6.8= 0.08×1000= 76÷100=
4.3+2.7= 1-0.01= 32×50= 5+8.5=
0.6+1.2= 0.8-0.06 = 2+1.8= 1-0.09=
4.5+5= 6+0.04= 18.5-5= 7.77-7.7=
45+2.5 = 3.33-2.22=
47.54-6.84=
23.6+14.83=
12×5= 0.2×100=
5÷1000= 96÷8=
91÷13= 42﹣42÷42=
38﹣(27﹣13)= 80÷2÷5=
600﹣54﹣46= 198﹣98×2=
1.3+0.9= 1-0.35= 28.6÷100= 0.25×4=
5.4+4.6= 2.3×0= 9.7×0.1= 2.4×5=
280×30= 20×450= 7×110= 25×4÷25×4=
800÷16= 420÷70= 317-99= 16+84÷4=
x
?
2.4
y
1.5
0.6