5th+Hour+Math

=**__+298__**= ||= =**568**= =**__+399__**= ||= =**386**= =**__+297__**= ||=  ||= =**546**= =**__+399__**= ||=   ||= =**748**= =**__+198__**= || =**427**= =**__+395__**= || =**865**= =**__+799__**= || =**768**= =**__+497__**= ||=   ||=   ||=   ||=   ||=   ||=   ||
 * = =**345**=
 * ===give 2 to 298 make it 300===

get 643.
|| just add 568+400 to get 868 then take away one because you added to many and you will get 867. you get 967 || I rounded 386 to 390. Then i rounded 297 to 300. Next I added 390 and 300 and got 690. then you subtract 7 from 690 and get 683 ||  || just do 546+400 to get 946 then take away one to get 945.=) ||   || you add 748+200 and get 948 and then - 2 and you get 946 || Change 395 to 400 and 427 to 430 and when you and them up you get 830. subtract 35 and then you get 795. || Round 799 to 800 then + 865 =1665 after that -1 and get 1664 || just round 497 to 500 then add 500 + 786 to get 1268. Then subtract 3 to get 1265.. :) ||   ||

=**__-298__**= ||= =**568**= =**__-399__**= ||= =**386**= =**__-297__**= ||=  ||= =**546**= =**__-399__**= ||=   ||= =**748**= =**__-198__**= || =**427**= =**__-395__**= || =**865**= =**__-799__**= || =**768**= =**__-497__**= ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   || then add 3 because you took away too many to get 271. There's your answer!=) ||  ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||
 * = =**345**=
 * round 298 to 300 and 345-300=45 but add 2 so you get 47 for your answer! || 568-399 is the same as 569-400. the answer is 169 both ways. || Just do 386-300+3 it equals,,,89 =) ||  ||   ||   ||   ||   ||   || Do 768-500 to get 268

Change the problem to make it easier to multiply. For example, you can multiply one number by two if you multiply the other by 1/2. Try making your own and solving it in the top row. =**__x 5__**= ||= =**28**= =**__x 5__**= ||= =**24**= =**__x 5__**= ||=  ||= =**148**= =**__x 5__**= ||=  ||= =**248**= =**__x 50__**= || =**128**= =**__x 50__**= || =**468**= =**__x 500__**= ||  ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||   ||
 * = =**16**=

Multiply by Splitting
When one number of a multiplication pair has two digits, try splitting that number into two parts by dividing it by 2. Example: 9 x 12 Split 12 into two parts: 12=6x2 Instead of 9x12 (9x6x2) think 9 x 6 and then double it. 9x6=54 Double 54 and you get 108.

1. 8 x 16 multiply 8 x 8 x 2 because 8 x 2 is 16 x 8 so the answer is 128.

2. 5 x 22 multiply 5 x4=20 + 2 =22 because 5x22 =220 you just + a 0

3. 6 x 18 18= 9 x 2 so you have to do 6 x 9 to get 54 x 2 to get 108.

4. 7 x 14 14= 7 x 2 so you have to do 7 x 7 to get 49 then 49 x 2 to get 98. =-)

5. 9 x 16 16= 8 x 2 so 9 x 8 is 72 x 2 is 144.=-)

6. 12 x 24 24= 12x 2 so 12x12=144x2=288....XD