True/False
True
Use a model to add. 3.14 + 1.12 =
4.26 (models will vary)
Use a model to subtract. 2.8 - 2.3=
0.5 (models will vary)
What number is in the hundredths place?
45.67
7
Round 3.456 to the nearest hundredth
4.46
When adding and subtracting decimals, you always put the longer number on top.
Ex: 6.8 and 1.3754
False, only if the number is larger in value!
Use a number line to answer. 1.75 + 0.13
1.88 (number lines need to have multiple jumps)
Use a number line 4.63 - 2.53=
2.10 (number line needs multiple hops)
What number is in the ones place?
23.09
3
Round 9.12 to the nearest whole number
9
Adding and subtracting decimals is the same as adding and subtracting any numbers, except you bring down the decimal point.
It's actually true! Phew!
Use a place value chart to answer. 0.79 + 0.45 =
1.24 (PV chart must show all place values and decimals lined up)
Use place value chart. 15 - 0.48=
14.52
What number is in the tenths place?
9.12
1
Round 7.352 to the nearest tenth
7.4
When adding and subtracting decimals, you should line up the decimal points.
True
Use a number line to show the answer. 17.82 + 1.35 =
18.17 (number line must show multiple hops)
Solve using any strategy. 87.4 - 38.821 - 21.32=
27.259
What number is in the tens place?
76.9
7
Round 5.9236 to the nearest thousandth.
5.924
When modeling addition and subtraction equations you must first figure out the answer using the standard algorithm.
False
Use any strategy to solve. 111.7 + 102.81 + 32=
246.51
Solve using any strategy. 105.65 - 62.33- 30 =
13.32
When you read a number with a decimal, what do you say when you see the decimal?
AND
Round 116.9346 to the nearest hundred.
100