1 P6.PC.JC.22031501
Level 2 PSLE
A box contained black balls and green balls. 40% of the balls were green. After some red balls were added to the box, 28% of the balls were green. What percentage of the balls in the box were red?
2 m
Percent of a set Percent to units Percent of different base Unchanged quantity Units table Units & parts Substitution
2 P6.AP.NK.21060405
Level 2 PSLE
Figure 1 shows a rectangular tile with a perimeter of 28 cm. Figure 2 is formed using 5 such tiles. Find the perimeter of Figure 2.
2 m
Rectangle Rectilinear figure Tiling Units & parts Substitution
3 P6.AG.NK.21061108
Level 1 PSLE
Find the value of the following when w = 2.
  1. 15 + 3w
  2. w - 59
2 m
Algebra in 1 variable Algebra substitution
4 P6.AG.NK.21061109
Level 1 PSLE
Find the value of each of the expressions when w = 5.
  1. 7w + 6
  2. 2w - w7
2 m
Algebra in 1 variable Algebra substitution
5 P6.AG.JC.17080443
Level 1 PSLE
Find the value of 5a - 9 + 3a when a = 10.
2 m
Algebra in 1 variable Boxing Algebra substitution

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