1+19%=
1.4÷10%=
1÷25%=
3.4-1.52=
10-0.76=
2÷10%=
1-1÷7=
15.7-5.07=
42+62=
10-2÷25%=
0.4m3:25L(求比值)=
2.01-1.9=
412÷2=
3072-288=
0.18÷0.3=
6-1 = 25%×24= 4.3+5.07= 0.9×9+0.9=
6÷ = 0.34÷10%= 25%+ = × ÷ × =
÷ = 0.33= 1- + = -( - )=
9÷ = 10÷10%= ×6÷ ×6= + - + =
1-30%= -10%= 40×80%= 72÷60%=
×40= 0.7:21= 6÷1.5= 20.03+1.4=
70×600= 82= + ÷ = 16÷8÷12.5=
这串珠子中,最后一个珠子应是颜色的;这种颜色的珠子在这串珠子中共有个。