54-9=
36+9=
36+5=
13-3=
100-18=
70-25=
62-36=
14+56=
81-34=
37+59=
46+18=
55-27=
27+58= 9+66= 84-38= 90-3=
55+38= 66+14 = 63-36= 100-27=
34+36 = 100-77= 41-18=
61-5= 79-37= 58+34= 24-8=
7+76= 60-9= 17-4= 13+5=
36+56= 33-9= 88+9= 53-6=
75-44= 39+14= 100-7= 28+43=
83-50= 68-37= 34+25= 24-8=
27+16= 52-26= 66-29= 6+35=
55-49= 21+4= 50-27= 46+18=
12+29= 42-35= 51-22= 75-57=
25+8= 72-33= 93-7= 83-25 =
83﹣72= 56﹣46= 36+62= 20+65= 20+60=
54+46= 57﹣30= 48﹣27= 89﹣50= 70﹣25=
算式:
图意:
答:儿童口罩比成人口罩多( )盒
答:一共买了( )盒口罩