Addition
Subtraction
Multiplication
Division
Riddle Me This
100

54 + 24

78

100

64 - 27 

37

100

13 x 4 

52

100

246 ÷ 2

123

100

What is always in front of you but can never be seen?

The future.

200

73 + 57

130

200

93 - 56 

37

200

56 x 9

504

200

64 ÷ 4 

16

200

What is full of holes but still holds water?

A sponge.

300

345 + 978

1,323

300

846 - 536

310

300

185 x 2 

270

300

143 ÷ 11

13

300

What can you catch but not throw?

A cold. 

400

136 + 547 

683

400

4,000 - 2,465

1,535

400

34 x 6

204

400

240 ÷ 6

40

400

What breaks as soon as you say its name?

Silence.

500

397 + 329

726

500

254-195

59

500

135 x 4

540

500

600 ÷ 5

120

500

Give me a drink, and I will die. Feed me, and I'll get bigger. What am I?

A fire.