Keywords: summer vacation, grade three, primary school

This article is suitable for: the third grade of primary school.

Composition source:

This diary is about the third grade of primary school. The title is: Interesting summer vacation-experience selling watermelons (math diary). Everyone is welcome to contribute enthusiastically.

Interesting summer vacation-selling watermelon experience (math diary)

The river is rushing, and my mother and I help sell melons.

My mother sold two and I bought three. My old aunt smiled and praised me.

Hey, hey, I'm fine!

One night in the summer vacation, my mother and I went out to enjoy the cool, and happened to meet my aunt who sold watermelons, so we began to help her sell watermelons.

The old aunt said, "Dudu is almost in the third grade." Come and help the old aunt settle accounts. Very easy to calculate, watermelon is one yuan a catty. " So we work together: Auntie picks melons to collect money, Mom weighs melons and loads them, and I count them.

After waiting for a while, an uncle came to buy watermelon. My uncle wants to buy two melons. After my aunt selected the melons, my mother weighed the first melon 12 kg and the second melon 13.5 kg, and counted them for the guests.

I'll do a quick calculation: 12+ 13=25 (Jin). Two melons weigh 25 Jin, one yuan per Jin, that's 25 yuan money. I told my uncle and aunt after I finished the calculation, and they praised me for being fast and accurate. Seeing that my uncle gave my aunt 30 yuan, I quickly said, "30-25=5, I want to give my uncle 5 yuan." I am very happy to successfully complete the first account.

After calculating the money, my aunt gave me two yuan as a reward. Old auntie left: 152-2= 150 yuan.

Finally, after seeing my aunt off, my mother and I went home happily.

It was already past 10 when I got home. Although a little tired, I experienced the hard work of selling watermelons and got the reward of my labor. I can also exercise my mathematical calculation ability, which is really rewarding!