广告牌4米x8米的多少钱
一、Judgment: The length of a light box billboard is 80 cm and the width is 40 cm. Its area is 3200 square centimeters, which is 3.2 square decimeters?
Wrong, the area is 3200 square centimeters, or 32 square decimeters
The concert hall has 40 seats in each row, a total of 25 rows.
① Judgment: How many people can the concert hall accommodate? Wrong, answer: 40x25=1000 (person)
② Fill in the blanks: Hongxing Primary School borrows the concert hall to hold the art festival, and each row needs 8 additional seats. It can accommodate up to 1,200 people for the festival.
48x25=1200 people
There is a rectangular flower garden, 18 meters long and 8 meters wide.
(1) Fill in the blanks: The area of this flower garden is __144___ square meters. 18x8=144 square meters
(2) Put up a fence around the flower bed, the fence is 52 meters long (18+8) x2=26x2=52 meters
The concert hall has 40 seats in each row, a total of 25 rows.
① Judgment: How many people can the concert hall accommodate? Wrong, answer: 40x25=1000 (person)
② Fill in the blanks: Hongxing Primary School borrows the concert hall to hold the art festival, and each row needs 8 additional seats. It can accommodate up to 1,200 people for the festival.
48x25=1200 people
There is a rectangular flower garden, 18 meters long and 8 meters wide.
(1) Fill in the blanks: The area of this flower garden is __144___ square meters. 18x8=144 square meters
(2) Put up a fence around the flower bed, the fence is 52 meters long (18+8) x2=26x2=52 meters