411 P2.WN.ED.18012058
Level 3
There are some cats and ducks on a farm. They have a total of 26 legs. 10 legs belong to the ducks. How many cats are there?
4 m
W 4 operations Model Part-whole
412 P4.WN.JM.17102376
Level 3
Alice, Rita and Min have 420 beads altogether. After Rita gave Min 50 beads and Min gave Alice 10 beads, they all have equal number of beads.
  1. How many beads did each girl have in the end?
  2. How many beads did Min have at first?
4 m
W 4 operations Equal stage after Working backwards
413 P2.WN.ED.18012057
Level 3
There are 4 mice and 3 hens in a farm. Each mouse has 4 legs. Each hen has 2 legs. How many legs do these animals have altogether?
4 m
W 4 operations Model Part-whole
414 P4.WN.JM.17102201
Level 2
A library has a certain number of books. In January, the library bought 325 new books and 280 books were loaned out. In February, the library lost 350 books and loaned out 210 books, after which 2831 books were left. How many books were there in the library in the beginning of January?
4 m
W 4 operations Working backwards
415 P2.WN.JC.18121502
Level 3
Ken bought 7 packets of sweets. There were 5 sweets in each packet. After buying, he gave 9 sweets to Jane.
  1. How many sweets did he buy?
  2. How many sweets did he have left?
4 m
W 4 operations Model Part-whole

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