511 P5.DA.JM.17083191
Level 3
A list of 13 numbers has an average of 330. When two numbers are deleted from the list, the average of the remaining numbers is 313.
  1. What is the sum of 13 numbers?
  2. What is the bigger number between the two numbers that have been deleted given that the difference between the two numbers is 1?
3 m
Averaging out 2 Averages More than or less than Units method
512 P4.AN.JM.17092859
Level 3
In the figure, AE is perpendicular to BE and ∠CED = 102°. Given that ∠AED is three times as large as ∠BEC, find ∠AED.
3 m
Angles at a point Model Times-as-many Units method
513 P5.DE.NK.22122003
Level 2
A blouse costs $4.50 more than a shirt. A skirt costs $15.20 more than the blouse. Jelly bought 5 of each item. She paid $376 for them. How much did she pay for the skirts she bought?
3 m
D 4 operations Sets Money More than or less than Times as many Model Units method
514 P6.AP.TL.17090768
Level 3
The perimeter of the figure formed by 3 squares, A, B and C, is 54 cm. The length of Square C is 12 the length of Square B. The length of Square A is twice the length of Square B. Find the area of Square A.
3 m
Length Square Fraction to units Times as many Units method
515 P4.AP.JM.17100194
Level 3
Brandon walked around a rectangular field from W to X to Y and to Z. He covered a distance of 560 m. The length of the field is thrice the breadth. If it cost $5 to put up a fence of 1 m, how much would it cost to fence around the whole field?
3 m
Rectangle Money Model Times-as-many Units method

5 per page

10 per page

20 per page

Symbols

x2
x3
₵
$
⊥
//
∠
°
π
%
:
\[ \]
STUDENT
Navigations
Contact Us
Members
Links