how would we multiply the numbers 13680347,35702369 and 25692359 with 9 mentally?what is the pattern that emerges.
for 6th class answer please
Answers
Answer:
To multiply a number with 9 we use the following trick:
To multiply a number with 9 we use the following trick:The number×(10-1)
To multiply a number with 9 we use the following trick:The number×(10-1)13680347×9=13680347×(10-1)= 136803470-13680347=123123123
To multiply a number with 9 we use the following trick:The number×(10-1)13680347×9=13680347×(10-1)= 136803470-13680347=12312312335702369×9=35702369×(10-1)=357023690-35702369=321321321
To multiply a number with 9 we use the following trick:The number×(10-1)13680347×9=13680347×(10-1)= 136803470-13680347=12312312335702369×9=35702369×(10-1)=357023690-35702369=32132132125692359×9=25692359×(10-1)=256923590-25692359=231231231
To multiply a number with 9 we use the following trick:The number×(10-1)13680347×9=13680347×(10-1)= 136803470-13680347=12312312335702369×9=35702369×(10-1)=357023690-35702369=32132132125692359×9=25692359×(10-1)=256923590-25692359=231231231These results repeat the digits 1,2 and 3 in a cyclic pattern
Answer:
Step-by-step explanation:
