Estimation
Multiplication
+/- Decimals
What's My Rule Table
Miscellaneous
100
650 + 678 =
What is 1,400?
100
85 x 3 =
What is 255?
100
6.2 + 3.8 =
What is 10?
100
Rule: *6 In: 7 Out:
What is 42?
100
2.4 + 4.5 =
What is 6.9?
200
890 + 567 =
What is 1,500?
200
89 x 9 =
What is 801?
200
7.5 - 2.4 =
What is 5.1?
200
Rule: *8 In: 9 Out:
What is 72?
200
23 * 9 =
What is 207?
300
231 + 251 + 261 =
What is 800?
300
546 x 3 =
What is 1,638?
300
86.32 + 29.35 =
What is 115.67?
300
Rule: *7 In: Out: 350
What is 50?
300
4.53 - 2.4 =
What is 2.13?
400
789 + 879 + 512 =
What is 2,200?
400
697 x 8 =
What is 5,576?
400
54.23 - 27.12 =
What is 27.11?
400
Rule: *6 In: Out: 5,400
What is 900?
400
25 * 60 =
What is 1,500?
500
147 + 741 + 471 =
What is 1,400?
500
2,458 x 4 =
What is 9,832?
500
89.6 + 3.58 =
What is 93.18?
500
Rule: In: 8 Out: 64,000
What is *8000?
500
28 x 28 =
What is 784?