75.v

It takes five minutes for children to eat five apples at the same time. At this rate, how many minutes will it take for 10 children to eat 10 apples at the same time?

76. Xiaohua has 10 red balloons, and Xiaohua has 8 yellow balloons. Xiaohua exchanged four red balloons for three yellow balloons of Xiaohua. Now Kobanawa Xiaohua has several balls each.

77. There are nine students in the art interest group of Xinxing Primary School, and there are as many students in the calligraphy interest group as in the art interest group. How many students are there in these two interest groups?

78. It's getting late. Mom asked Xiao Ming to turn on the light in the room, but the naughty Xiao Ming pulled the switch nine times in a row. Can you tell me if the light is on? What about 20? 100?

Xiaoqing has nine story books, Xiao Xin has seven comic books, and Xiaoqing traded three story books for two comic books of Xiao Xin. How many books do Xiaoqing and Xiao Xin have now?

80. Xiao Min went to the store to buy stationery. She bought 1 pencil with half the money she brought, and 1 ballpoint pen with the rest, leaving 1 yuan. How much money does Xiao Min have?

8 1. Huanhuan and Lele went to buy exercise books. Huanhuan bought four and Lele bought six. Huanhuan spends less than Lele 1 yuan. How much is the exercise book?

82. Miss Li has money from 60 yuan and just bought a football and two volleyballs. If you only buy two volleyballs, there is still 28 yuan left. How much is a football?

Money? How much is a volleyball?

83. There is a little black sheep in the Little White Sheep Team. The little black sheep is the seventh in front and the fourth in the back. How many lambs are there in this team?

84. 14 Students stand in a team to do exercises. Zhang Bing is the sixth in front, which one is behind?

85. There are 13 chickens in a row, including a big cock. From the front, it ranks eighth. How many chickens are there in the back?

86. There are 13 chickens in a row. There is a big cock. There are eight chickens in front of it. How many chickens are there in the back?

87. Xiaoming 10 years old, and his mother is 38 years old. How old was Xiao Ming 15' s mother?

88. Both Xiaoming and Xiaohong collect stamps. After Xiaoming gave Xiaohong six stamps, they had the same number of stamps. How many stamps does Xiaoming have?

89. Longlong spends 4 yuan to buy a pineapple, and the money for buying a pineapple can buy 1kg bananas. You can buy four pears with the money of 1kg banana. How much is each pear?

90. Qiang Qiang and Xiaohua played table tennis for two hours. How many hours did each of them play?

9 1. has a two-digit number, and one digit is 5 more than ten digits. What are the possible numbers?

92. Forty students took part in the math contest. Xiaohong shook hands with the students who participated in the competition once each. How many times do they shake hands at a time?

93. 18 Students line up to do the questions. There are 10 people on the right. How many are there on his left?

94. There is a mirror opposite the clock. The clock in the mirror is shown below. What's the correct time on the clock? What time is it on the clock?

95. Huahua's house has three floors above and two floors below. How many floors does this building have?

96. There is a row of male students standing on the playground. There are six in a row. There are two female students standing between every two male students. How many female students are there in a row?

97. Xiaohua is 10 years old this year. She is 28 years younger than her father. How old was she last year?

98. The little monkey and the little rabbit went to pick peaches. The little monkey picked 15 peaches. When the little monkey gave the little rabbit three peaches, they all had the same number of peaches. Do you know how many peaches the rabbit picked?

99. Xiaoming and his parents traveled to Beijing in the summer vacation. They took a group photo with everyone in the tour group and took 15 photos. How many people are there in the tour group?

100. Xiaojun and his father traveled abroad together. Dad buys a train ticket for 5 yuan, and Xiaojun buys half a ticket. How much do they have to pay for the round trip?