Addition & Subtraction of Decimals
.267 + 1.5
1.767
1/4 + 2/4
3/4
A pack has 6 markers. A teacher buys 5 packs. How many markers?
30 markers
The answer to a multiplication problem is called the ___.
Product
“The decimal 3.40 is the same as 3.4.”
Correct or Incorrect? Why?
Correct
Zeros to the right of a decimal don’t change the value.
78 − 2.4
75.6
3/5 − 1/5
2/5
A class has 24 students. They split into groups of 3. How many groups?
24 ÷ 3 = 8 groups
The number being divided in a division problem is the ___.
Dividend
“1/2 + 1/4 = 2/6.”
Correct or Incorrect? Why?
Incorrect
Denominators must match → 1/2 = 2/4; 2/4 + 1/4 = 3/4.
12.67 + 345
357.67
1 ½ + 2 ⅓
= 3 5/6
A bakery makes 18 trays of muffins. Each tray has 12 muffins. They sell 150 muffins. How many are left?
18×12=216; 216−150= 66 muffins
A number that shows part of a whole is called a ___.
Fraction
“Area and perimeter measure the same thing.” — Jalen
Incorrect
Perimeter = distance around; area = space inside.
905 − 4.78
900.22
4 ¼ − 2 ⅔
1 7/12
A store has 45 boxes. Each box holds 8 toys. The toys are packed into bags of 10. How many bags can be made?
45×8=360; 360÷10= 36 bags
A number with a whole part and a fractional part is a ___.
Mixed number
8 - 2 5/8
5 3/8
Emily ran 2.65 miles on Monday and 3.42 miles on Tuesday. How many more miles did she run on Tuesday than Monday?
0.77 miles
A recipe needs 2 ½ cups of flour and 1 ¾ cups of sugar. How much more flour than sugar is needed?
¾ cup
A gardener plants 15 rows of flowers with 24 flowers in each row. She gives 120 flowers to neighbors. How many remain in the garden?
15×24=360; 360−120= 240 flowers
What is the answer to a division problem called?
Quotient
270.20 divided by 56
4.825