Ｍａｋｅ１０　タイムトライアル

A.Sugi

About this app

Disclosure will be finished at the end of October 2018.

Make 10 TT (Time Trial)

It is a game that makes 10 with 4 numbers. The time available for each trial is

It is 30 seconds. When you can not make it in 30 seconds see the model answer

can do.



how to play

1. The game starts with the touch of the [Start] button.

2. Make 10 by using all 4 numbers displayed once
Please give me.
In case
3. You can use any of "+, -, ×, ÷" as the calculation method.
No matter what operation you do not use, it is acceptable.

For example, if 4, 3, 2, 1 are displayed, it is as follows
I will make 10.

· ④ + ③ = 7 ② + ① = 3 7 + 3 = 10
In case
· ④ × ② = 8 ③-① = 2 8 + 2 = 10
In case
· ④ × ③ = 12 12 - ② = 10 10 ÷ ① = 10

As a result, 10 is created as a result, so they are all correct answers.
.

4. You do not have to use it in the order shown.

5. If it is not divisible by division, decimal places are valid.
Therefore, the following calculation is incorrect.

⑥ × ⑤ = 30 30 + ① = 31 31 ÷ ③ = 10.333

If you mistake the order of multiplication and multiplication, you may become incorrect
Yes (following pattern).

④ × ⑤ = 20 20 ÷ ⑥ = 3.333 ... 3.333 × ③ = 9.999

In case
Characteristic

1. The displayed four numbers can always make 10.

2. The answer time per question is 30 seconds.

3. You can not 10 using 4 numbers or calculate halfway
When the 10 is unlikely to be able to be done, touch the [Retry] button
Then I can do that question once more. However, at time limit
I will not return to original.

In the case that 10 could not be made in 4.30 seconds, the model answer
You can see.

Target

All ages.

Please try to maintain computational power and foresight.