Addition
17+25=42
Addition combines two quantities into a total. Here you add 17 and 25 by summing ones and tens, which gives 42. Line the numbers up by place value and carry when a column exceeds nine.
Addition
Addition combines two quantities into a total. Here you add 17 and 25 by summing ones and tens, which gives 42. Line the numbers up by place value and carry when a column exceeds nine.