Missing Numbers
The value of C in C + 123 = 522
What is 399?
the measure around a figure
What is its perimeter?
(4/9)(3/12)
What is 1/9?
the first 7 multiples of 7
What are 7, 14, 21, 28, 35, 42, and 49?
the number 4 written as a fraction
What is 4/1?
the value of H in 741 - H = 372
What is 369?
the amount of surface of a figure
What is its area?
(2/3)3
What is 8/27?
the least common multiple of 8 and 12
What is 24?
2/3 of 30
What is 20?
the value of A in 13 ∙ A = 156
What is 12?
the perimeter of a rectangle 17 units wide and 23 units long
What is 80 units?
6/5 ∙ 15/2
What is 9?
the first 3 common multiples of 2 and 3
What are 6, 12, and 18?
3/7 of 42
What is 18?
the value of L in 64/L = 4
What is 16?
the area of a rectangle 7 units wide and 12 units long
What is 84 units2?
4/5 ÷ 10/5
What is 2/5?
the multiples of 6 between 29 and 50
What are 30, 36, 42, and 48?
5/7 of 3
What is 15/7?
the value of A in A − 364 = 376
What is 740?
the area of the figure on the board (dimensions in cm)
What is 400 cm2?
the product of a number and its reciprocal
What is 1?
the LCM of 20 and 24
What is 120?
7/13 of 52
What is 28?