小学数学毕业复习---比与比例习题精选（Elementary school mathematics review - ratio and proportion exercises selected）.docVIP

小学数学毕业复习---比与比例习题精选（Elementary school mathematics review - ratio and proportion exercises selected） Review of primary school graduation (four) Select the ratio and proportion of knowledge questions Fill in the blanks 1, in a proportion of two, excessive product is the smallest prime number, a balance is 0.5, another is (inside). 2, a number = = B, X 60%, a: B = (:). 3, 0.75: into the simplest integer ratio is (). 4, a map of the line scale, it means that the actual distance is on the map distance () times. 5, on the drawings, a square area of 16 square centimeters, and its actual area is () square meters. 6, a number of B and B is variable, the ratio is (). 7, a proportion of two, and the facility is 37, the difference is 13, the ratio is the proportion of type can be (). 8, a car weight of 1.8 tons of fruit, according to the proportion of 2:3:5 assigned to a, B, C three fruit shop, B fruit store to share the fruit (). 9.) on Sunday, Xiao Li read a book for 2 hours and 15 minutes. Xiao Hong also spent 2.15 hours on a book. Xiao Li and Xiao Hong read a book at the same time. 10 in a scale. The two extremes are prime, their product is 22, a balance is the product, this ratio can be (type). 11, the distance between the two places 80 kilometers, painted in the scale of 1:400000 map, should draw () cm. 12, a cup of sugar, sugar and water ratio is 1:4, after drinking the cup of syrup, and fill up with water, then the ratio of sugar to water is (). Two contact 13, a known proportion is respectively 3 and two, a ratio proportion, the proportion is (). 14, the number of armour is more than that of B, and the ratio of number of armour to number of B is (). 15, the average number of a, B, C three is 15, a, B, C three is the ratio of 2:3:4, and the number is (). 16, two items within a proportion are reciprocal, a facility is another facility (is). 17, the height of the cylinder, the bottom area of the cylinder and the volume () ratio. 18, Dongfeng primary school grade six is th