505
1000 an easy way to do this is to add 5 plus 5 which = 10 then add the two zeros in 500 because you already used the 5 when you added them which = 1000 :)
ok so 2+3 equals 5.but 200+300 equals 500.
548.
800
500+50+5
505
1000 an easy way to do this is to add 5 plus 5 which = 10 then add the two zeros in 500 because you already used the 5 when you added them which = 1000 :)
500 plus 800 equals 1,300.
1,620
ok so 2+3 equals 5.but 200+300 equals 500.
400 + 500 = 900
500+600= 1,100
5 plus 25 equals 60. Need to solve for 5 plus 25 equals ?: 2 plus 10 equals 24 is equivalent to 2 × (1 plus 5) equals 2 × (12); and 3 plus 15 equals 36 is equivalent to 3 ×(1 plus 5) equals 3 × (12); thus 5 plus 25 equals ? is equivalent to 5 × (1 plus 5) equals 5 × (12); thus ? = 5 × 12 = 60.
1,500
548.
800