Room 207 Math Class

Addition

100

What is 300+107

407

200

What is 300+29

329

300

What is 297+43

340

400

What is 367+72

439

600

What is 373+10*3

1373

Subtraction

100

What is 20-9?

11

200

What is 9-3

6

300

What is 933-247?

686

400

What is 387-21?

366

600

What is 2197-10*2

2097

Multiplication

100

What is 9x2

18

200

What is 7x9

63

300

What is 21x2

42

400

What is 99x3

297

600

What is 27x10*2

270

Algebra

100

Find the value of X: 29+X=32

X=3

200

Find the value of X: 833-X=790

X=43

300

Find the value of R: 19xR=38

R=38

400

Find the value of Z and S combine: 70-(Z+S)=21

Z+S=49

600

Find the value of Y+Z: Y+Z x 2=3032

1516

PEMDAS

100

Modify the equation: 9+2x3

9+(2x3)

200

Modify the equation: 19-17x9

19-(17x9)

300

Modify the equation: 292+97-29

292+(97-29)

400

Simplify the equation: 328+(9+9)

328+18

600

Simplify the equation: 83x(393-19*2)

83x355