22×4=88; 23+19=42; 63÷3=21; 150-90=60;
78-59=19; 24÷2=12; 1200-400=800; 13×3=39;
35+24=59; 80-45=35; 36÷6=6; 75-29=46;
31×2=62; 65-37=28; 89-48=41; 84÷4=21. 故答案为:88,42,21,60,19,12,800,39,59,35,6,46,62,28,41,21.
22×4=88; 23+19=42; 63÷3=21; 150-90=60;
78-59=19; 24÷2=12; 1200-400=800; 13×3=39;
35+24=59; 80-45=35; 36÷6=6; 75-29=46;
31×2=62; 65-37=28; 89-48=41; 84÷4=21. 故答案为:88,42,21,60,19,12,800,39,59,35,6,46,62,28,41,21.