The sum of 12.5 times 40 plus 0.7 is fast with a simple method

12.5 times (40 + 0.7)
=12.5×40+12.5×0.7
=500+8.75
=508.75

RELATED INFORMATIONS

1. A simple method to calculate 5 plus 95 times 28
2. A simple method to calculate 12.5 times 7.8 times 0.8
3. 28 times 560 plus 44 times 12.8 and 2.5 times 3.2 times 12.5 are calculated by simple method
4. Add parentheses at appropriate positions to make the equation true. The first 7 times 9 + 12 divided by 3-2 = 75, the second 7 times 9 + 12 divided by 3-2 = 89 It doesn't matter
5. How does 7 * 9 + 12 / 3-2 equal 47, with brackets, 7 * 9 + 12 / 3-2 equal 75 90-60/15+5*9=41,90-60/15+5*9=47
6. Add brackets to the following formula to make the equation hold. 7 × 9 + 12 △ 3-2 = 23
7. 5 times 9 + 15 divided by 3-2 = 18, parentheses make the equation true
8. 7 * 9 + 12 / 3-91 makes the equation true with brackets
9. 7 × 9 + 12 △ 3 = 91 and brackets make the formula true
10. What is minus 91 divided by 13?
11. 14 times 34 plus 6. 28 times 23 plus 1. 57 times 40
12. Simple calculation. 9.6 times 28.5 plus 0.285 times 40
13. Simple calculation method 9.6 * 28.5 + 0.285 * 41
14. When Wang Lele wrote a two digit decimal, he forgot the decimal point and got an integer 63.36 larger than the original decimal
15. When Wang Lele wrote a decimal, he forgot the decimal point. The integer he got was 63.36 larger than the original. Do you know the original decimal?
16. When Wang Lele wrote a two place decimal, he forgot the decimal point, and the whole number he got was bigger than the original one
17. When Wang Lele wrote a two digit decimal, he forgot the decimal point and got an integer 63.36 larger than the original decimal. Do you know what the original decimal is? (to be simple, just give me the formula.)
18. Xiao Hong forgets the decimal point when she writes a two digit decimal. The integer she gets is 63.36 times larger than the original one Teach me
19. X minus 36 percent x = 770
20. The square of two x minus three X is equal to two? Find two values of X