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A piece of the pie
Dried Petals
100
62-18
What is \begin{align*} 62-18 &= 62-10-8\\ &= 52-8\\ &=44? \end{align*}
100
54÷9
What is 6?
100
(-2000)*(-200)
What is 400,000?
100
\begin{align*} \frac{49}{56} Reduced \end{align*}
What is \begin{align*} \frac{7}{8}? \end{align*}
100
15 _ -22
What is 15 > -22?
200
-33-(-73)
What is \begin{align*} -33-(-73)&=-33+73\\ &=40? \end{align*}
200
2800÷(-40)
What is \begin{align*} 2800÷(-40)&=280÷(-4)\\ &=-70? \end{align*}
200
62*7
What is \begin{align*} 62*7&=(60+2)*7\\ &=(60*7)+(2*7)\\ &=420+14\\ &=434? \end{align*}
200
\begin{align*} \frac{5}{7} &nbsp and &nbsp \frac{9}{10} with &nbsp a &nbsp common &nbsp denominator \end{align*}
What are \begin{align*} \frac{5}{7} &= \frac{50}{70}\\ &and\\ \frac{9}{10} &= \frac{63}{70}? \end{align*}
200
8729 rounded to the nearest ten
What is 8730?
300
94-44-13
What is \begin{align*} 94-44-13&=50-10-3\\ &=40-3\\ &=37? \end{align*}
300
119÷7
What is \begin{align*} 119÷7&=(70+49)÷7\\ &=(70÷7)+(49÷7)\\ &=10+7\\ &=17? \end{align*}
300
37*58
What is \begin{align*} 37*58&=(30+7)(50+8)\\ &=(30*50)+(30*8)+(7*50)+(7*8)\\ &=1500+240+350+56\\ &=1740+350+56\\ &=2090+56\\ &=2146? \end{align*}
300
\begin{align*}\frac{11}{10} &nbsp and &nbsp \frac{17}{15} with &nbsp a &nbsp common &nbsp denominator \end{align*}
What are \begin{align*} \frac{11}{10} &= \frac{33}{30}\\ &and\\ \frac{17}{15} &= \frac{34}{30}? \end{align*}
300
Prime factorization of 48
What is \begin{align*} 48 = 2^{4} * 3? \end{align*}
400
48+21-33
What is \begin{align*} 48+21-33&=69-33\\ &=36? \end{align*}
400
385÷6
What is \begin{align*} 385÷6&=(360+25)÷6\\ &=(360+24+1)÷6\\ &=(360÷6)+(24÷6)+(1÷6)\\ &=60+4+\frac{1}{6}\\ &=64\frac{1}{6}? \end{align*}
400
173*23
What is \begin{align*} 173*23&=(100+70+3)(20+3)\\ &=(100*20)+(100*3)+(70*20)+(70*3)+(3*20)+(3*3)\\ &=2000+300+1400+210+60+9\\ &=2000+1400+300+210+60+9\\ &=3400+510+60+9\\ &=3910+69\\ &=3979? \end{align*}
400
\begin{align*}\frac{33}{6} as &nbsp a &nbsp mixed &nbsp number \end{align*}
What is \begin{align*} \frac{33}{6}&=\frac{(30+3)}{6}\\ &=\frac{30}{6} + \frac{3}{6}\\ &=5\frac{1}{2}? \end{align*}
400
The greatest common divisor of 48 and 60
What is 12? \begin{align*} &Divisors &nbsp of &nbsp 48: 1, 2, 3, 4, 6, 8, 12, 16, 24, 48\\ &Divisors &nbsp of &nbsp 60: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60 \end{align*}
500
\begin{align*} ◻ + 89 &=◻ + ◻ + ◻ \\ &= 147 +◻\\ &=◻ \end{align*}
What is \begin{align*} 67 + 89 &= 67 + 80 +9\\ &=147 + 9\\ &=156? \end{align*}
500
115÷15
What is \begin{align*} 115÷15&=(105+10)÷15\\ &=(105÷15)+(10÷15)\\ &=7+\frac{10}{15}\\ &=7\frac{2}{3}? \end{align*}
500
(50-3)(70-4)
What is \begin{align*} (50-3)(70-4)&=(50*70)+(50*-4)+(-3*70)+(-3*-4)\\ &=3500-200-210+12\\ &=3500-410+12\\ &=3090+12\\ &=3102? \end{align*}
500
\begin{align*} 3 \frac{9}{11} as &nbsp an &nbsp improper &nbsp fraction \end{align*}
What is \begin{align*} 3 \frac{9}{11} &=\frac{(11*3)+9}{11}\\ &=\frac{33+9}{11}\\ &=\frac{42}{11}? \end{align*}
500
The least common multiple of 15 and 21
What is 105? \begin{align*} &Multiples &nbsp of &nbsp 15: 15, 30, 45, 60, 75, 90, 105\\ &Multiples &nbsp of &nbsp 21: 21, 42, 63, 84, 105 \end{align*}
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