41 P4.WN.JM.17102199
Level 2
15 x 24 + 15 x 4 = 15 x 8 + _____ x 30
2 m
W 4 operations Distributive law of multiplication
42 P4.PA.JM.17092433
Level 3
What is 3 + 4 + 5 + 6 + ... + 47 + 48?
4 m
Rainbow method Sum of consecutive W 4 operations
43 P4.WN.JM.17102258
Level 2
Mrs Kang wanted to buy 300 badges. The badges were sold in boxes of 9. What was the minimum number of boxes of badges that Mrs Kang needed to buy?
2 m
W 4 operations W Remainder Min-max
44 P4.WN.NK.23010622
Level 2
5 trees are being planted at equal intervals on a road side of 20 m. If the trees are planted at both ends of the road, what is the distance between each tree?
2 m
W 4 operations Length Intervals
45 P4.WN.NK.23010623
Level 2
Mrs Ling planted 6 trees in a row. Each tree is 2 m away from the other. What is the distance between the first and the last tree?
2 m
W 4 operations Length Intervals
46 P4.WN.JM.17102200
Level 2
If you multiply a number by 8, then add 13, then subtract 9, you will get 100. What is the number?
2 m
W 4 operations Working backwards
47 P4.PA.JM.17092419
Level 3
Some tables and chairs are arranged as shown.
  1. How many chairs are there in Figure 7?
  2. How many tables are needed for 48 chairs?
5 m
Equal intervals W 4 operations
48 P4.PA.JM.17092418
Level 3
Sticks are used to make the figures as shown.
  1. How many sticks are used to make Figure 6?
  2. Which figure requires the use of 148 sticks?
5 m
Equal intervals W 4 operations
49 P4.WN.JM.17102183
Level 2
Xiaoping has 9 boxes of beads. In each box, there are 47 beads. If she gives 298 beads to her sister, how many beads will she have left?
3 m
W 4 operations Model Part-whole
50 P4.WN.JM.17102185
Level 2
Jenny wanted to invite 463 guests to her wedding. Each of her 7 friends helped her to make 23 invitation cards. She made the rest of the cards herself.
  1. How many cards did Jenny's friends help her make?
  2. Assuming that Jenny needed a card for each guest, how many more cards did Jenny have to make by herself?
3 m
W 4 operations Model Part-whole
51 P4.WN.JM.17102187
Level 2
There are 45 rows of 13 seats in Victory Concert Hall. 117 people attended a concert at Victory Concert Hall. How many seats were not occupied during the concert?
3 m
W 4 operations Model Part-whole
52 P4.WN.JM.17102188
Level 3
A shopkeeper had 450 cartons of bottled mineral water. In each carton, there were 36 bottles of mineral water. He sold 35 cartons of mineral water, how many bottles of mineral water had the shopkeeper left?
3 m
W 4 operations Model Part-whole
53 P4.WN.JM.17102191
Level 3
Mrs Goh bought 16 toy planes and 8 toy trains. Each toy plane cost $14 and each toy train cost $12. How much did Mrs Goh spend altogether?
3 m
W 4 operations Money Model Part-whole
54 P4.WN.JM.17102194
Level 3
Tom paid $480 for some shirts. 8 of the shirts cost $45 each. The remaining shirts cost $24 each. How many shirts did he buy altogether?
3 m
W 4 operations Money Model Part-whole
55 P4.WN.NK.22112905
Level 3
Aisa has 405 cm of lace. She sews the lace around 6 identical square shaped cushion cover. If she uses 89 cm of lace on each cushion covers, how much lace does she need to buy?
3 m
W 4 operations Length Model Part-whole
56 P4.WN.JM.17102189
Level 3
The total cost of 8 blouses and 9 skirts is $487. Each skirt costs $23. Find the cost of each blouse.
3 m
W 4 operations Money Model Part-whole
57 P4.WN.NK.23010606
Level 3
Fred has a total of 4920 stamps. He has 780 more local stamps than foreign stamps. How many foreign stamps does he have?
3 m
W 4 operations Model Comparison
58 P4.WN.NK.22112912
Level 3
The total height of Hill A and Hill B is 3813 m. Hill B is 987 m lower than Hill A. Find the height of Hill A.
3 m
W 4 operations Length Model Comparison
59 P4.WN.JM.17102324
Level 3
Melody flipped her book to the middle. The sum of the two facing page numbers is 157.
  1. What are the two page numbers?
  2. How many pages are there in the book?
3 m
W 4 operations Model Comparison Units method
60 P4.WN.JM.17102190
Level 3
The sum of two numbers is 846. If one number is 50 greater than the other, what is the larger number?
3 m
W 4 operations Model Comparison Units method

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