题目

Exercise is an important part of staying healthy. Studies show that it can help strengthen the body’s natural defenses against disease. But exercise does not just keep us healthy. For many people, it is part of their daily routine, making them feel better about themselves. Getting enough exercise at difficult times, such as the current coronavirus pandemic (新冠疫情), is important.However, due to the bans on close contact between individuals, gyms and exercise studios are not open. In areas with stay-at-home orders, exercising outside may not be as simple as usual. So, people are changin口算． （1）350＋450÷5＝（　　） （2）2＋11×7＝（　　） （3）5×14－68＝（　　） （4）45－35÷7＝（　　）