Addition
Subtraction
Any 3
Multiplication
Multiplication
100

320 + 241 = 

Use a Tree Diagram to solve. 


500 + 60 + 1 = 561

100

45 -28 = 

Use tree diagram 

17

100

34 + 41 + 52 = 

128

100

5x6

30

100
Use left to right Partial Sums 36x17

612

200

543 + 236 = 

Use a number line to solve


700 + 70 + 9 = 

200

539 - 421 = 

use compose and decompose 

118


200

234 - 103 -50 = 

81


200
9x3

27

200

use lattice to solve 36x17

612

300

822 + 164 = 

Use compose and Decopose to solve 


900 + 80 + 6 = 986

300

564 - 237 = 

Use Left to right Partial Sums to Solve 

327


300

Please show me what 5x4 means, Dram a picture!

It should look like five groups of four. 
300

3x10

30

300

use lattice to solve 432x85

36720

400

375 + 517 = 

Use standard Alg to show 

800 + 80 + 12 = 892

400

377 - 256 = 

Use standard alg to solve


121

400

Please show me what 20/5 looks like. 

It should like four groups of 5


400

6x3

18

400

use lattice to solve 432x85

36,720

500

667 + 253 = 

use base ten to solve 


800 + 110 + 10 = 920

500

459 -254 = 

use base ten to solve 

204


500

Please show me what 21/7 looks like 

It should look like 7 groups of 3. 

500

200x3

600

500

42x 16 try standard alg 

672

M
e
n
u