The number that when added to 6.599 equals 13.649 is ?
-6
-0.5
-0.09
-0.009
13.649
7.649
7.149
7.059
?
When subtracting numbers, it can be helpful to decompose the second number using the place value method and then use the arrow method to decrease the first number by each place valueFor example, if we have 8.75 - 2.39
Decompose 2.39 into 2 ones, 3 tenths, and 9 hundreths
