True/False
When adding and subtracting decimals, you always line up the decimal point.
True
3.14 + 5.12 =
8.26
28.85 - 7.34=
21.51
232 x 3 =
696
What place value is the 8 in?
8765
When adding and subtracting decimals, you put the number with the greatest value on the bottom.
False
3476 + 223 =
3699
25.64 - 9.9 =
15.74
876 x 2 =
1752
What place value is the 2 in?
54.25
Tenths
It does matter that the values are lined up in the correct place values?
True
3 + 4.55=
7.55
6234 - 4999 =
1235
432 x 4 =
1728
Sally and Bill are building a lego tower. Sally includes 143 legos while Bill includes 98 legos. How many pieces are included in the lego tower?
241 legos
When adding and subtracting decimals, you always put the number with more digits on top.
False
5687 + 324 =
6011
15 - 0.48 =
14.52
235 x 8 =
1880
Jordyn has $58.50 before going to the store. She purchased a shirt for $19.99 and a pair of jeans for $32.50. How much money does Jordyn have left?
$6.01
When adding and subtracting decimals, you count how many numbers are behind the decimals in the problem and put the same number of decimal places in your answer.
False
11.7 + 2.81=
14.51
1.09 - 0.87=
0.22
967 x 6 =
5802
Jack and Jill want to attend a concert that will cost a total of $900. Jack has $356.50 and Jill has $475. How much more money does Jack and Jill need to attend the concert?
$68.50