Make 24
Countdown
Find the pattern
+ - x /
Word problems
100
4, 5, 9, 6

4+5+6+9=24

100

Make 150 with 300, 3, 5, 5, 5, 3

5+5 = 10, 10/5 = 2, 3-3=0, 2+0=2, 300/2 = 150

or 

3*5*5*(5-3) = 150, 300 - 150 = 150


100

2, 4, 6, 8, 10, 12, 14

Add by two every time
100

(1+9)/2 + 15/3 +  (1+7*2)/5

13

100

Sienna has 10 samosas. Rob steals 4. How many samosas does Sienna have left?

10-4=6

200

4, 9, 3, 4

4*9-3*4 = 36-12 = 24

200

Make 205 with 3, 4, 4, 7, 25, 100

4 * 3 = 12, 12 - 7 = 5, 25 * 4 = 100, 100 + 100 + 5 = 205

200

3, 70, 137, 204

Add by 67

200

67^2

4489

200

Sienna is inviting friends over to her house. She has 5 friends coming over, and she wants to give each friend 3 snacks. If each snack costs $2, then how much does she have to spend?

3 snacks per friend = 3x2x5=30 

300

5, 6, 7, 8

6*8=48

7-5=2

48/2=24

300

Make 647 with 3, 3, 6, 25, 75, 100

75 / 3 = 25, 25 + 25 = 50, 50 - 3 = 47, 100 * 6 = 600, 600 + 47 = 647

300

800, 200, 50, 12.5

divide by 4

300

(6*7-41)13 + 6*7*3

139


300

Rob wants to buy a dozen flowers. He has $50 in his pocket, and each flower is $0.75. How much money will he have left?

50-(12x0.75)=41 

400

4,4,10,10

(10x10-4)/4

400
Make 881 with 100,7,3,7,8,9


100×7+3×7×8+9=881


 

400

2,5,11,23,47…

multiply by 2 +1

400

((1/6)+(1/7))42

(1/6)+(1/7)=(13/42)x42=13


400
Sienna wants to get a pet. She looks at the options; a hedgehog, a chinchilla, and a cat. If the hedgehog and the chinchilla cost $300 together, the hedgehog add  the cat cost $450 together, and the cat and the chinchilla cost $270, how much do they cost altogether? 

h+ch=300, h+ca=450, and ch+ca=270, add them all up: 300+450+270=1,020 and divide by two so 1020/2=510 


500

3, 8, 3, 8

3 - (8/3) = 1/3

8/ 1/3 = 8*3 = 24

500

Make 356 with 75, 9, 5, 5, 10, 2

10 - 5 = 5                                                    2*5+9 = 19

5*75-19 = 356

500

1, 1, 2, 3, 5, 8

Hint: think of the difference of the numbers

add the previous two terms together

500

413+79-200*10

67, 000

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