Math topic中文

Sum-difference-multiple problems

Recover each quantity from given sums, differences and multiples by drawing segment diagrams and unifying into one share.

Practice questions

  1. 1All of the marbles in Maria's collection are red, green, or blue. Maria has half as many red marbles as green marbles an…
  2. 2Rectangles R1R_1 and R2R_2, and squares S1S_1, S2S_2, and S3S_3, shown below, combine to form a rectangle that is 33223322…
  3. 3母亲26岁结婚，第二年生了儿子，若干年后，母亲的年龄是儿子的3倍．此时母亲的年龄为（ ） A. 39岁 B. 42岁 C. 45岁 D. 48岁
  4. 4Three positive integers are equally spaced on a number line. The middle number is 15 and the largest number is 4 times t…
  5. 5Luka is making lemonade to sell at a school fundraiser. His recipe requires 44 times as much water as sugar and twice a…
  6. 6Rohan keeps a total of 90 guppies in 4 fish tanks. •There is 1 more guppy in the 2nd2nd tank than in the 1st1st tank. •The…