YEAR 4 DECIMALS Decimals 7 Rounding decimal numbers
YEAR 4 DECIMALS Decimals #7 Rounding decimal numbers using number lines.
Round 4. 2 to the nearest whole number To be able to do this you need to understand two things. When we are rounding numbers, we are saying which value it is closest to. It is a more approximate value. We can use a number line to help us, but there is another method we can use. A whole number has no fraction or decimal. When rounding to the nearest whole number, we round to the ones column
Round 4. 2 to the nearest whole number O. t 4. 2 Step one – underline the column you are rounding to. This helps us identify which whole number we are rounding to. Step 2 – point to the column which comes before. The amount of tenths will show us whether we are going to round up or down. Step 3 look at the value you are pointing at and decide whether you are going to round up or down. 4 or less round down. 5 or more round up. We are pointing at a 2 so we are going to round down. The amount of wholes will stay the same. 4. 2 rounded to the nearest whole number is 4.
Round 4. 2 to the nearest whole number O. t 3. 9 Step one – underline the column you are rounding to. This helps us identify which whole number we are rounding to. Step 2 – point to the column which comes before. The amount of tenths will show us whether we are going to round up or down. Step 3 look at the value you are pointing at and decide whether you are going to round up or down. 4 or less round down. 5 or more round up. We are pointing at a 9 so we are going to round up to the next whole number. 3. 9 rounded to the nearest whole number is 4
Round 4. 2 to the nearest whole number TO. t 13. 1 Step one – underline the column you are rounding to. This helps us identify which whole number we are rounding to. Step 2 – point to the column which comes before. The amount of tenths will show us whether we are going to round up or down. Step 3 look at the value you are pointing at and decide whether you are going to round up or down. 4 or less round down. 5 or more round up. We are pointing at a 1 so we are going to round down. The whole number will remain the same. 13. 1 rounded to the nearest whole number is 13.
Round 4. 2 to the nearest whole number TO. t 46. 5 Step one – underline the column you are rounding to. This helps us identify which whole number we are rounding to. Step 2 – point to the column which comes before. The amount of tenths will show us whether we are going to round up or down. Step 3 look at the value you are pointing at and decide whether you are going to round up or down. 4 or less round down. 5 or more round up. We are pointing at a 5 so we are going to round up to the next whole number. 46. 5 rounded to the nearest whole number is 47.
Round 4. 2 to the nearest whole number HTO. t 151. 6 Step one – underline the column you are rounding to. This helps us identify which whole number we are rounding to. Step 2 – point to the column which comes before. The amount of tenths will show us whether we are going to round up or down. Step 3 look at the value you are pointing at and decide whether you are going to round up or down. 4 or less round down. 5 or more round up. We are pointing at a 6 so we are going to round up to the next whole number. 151. 6 rounded to the nearest whole number is 152.
Round 4. 2 to the nearest whole number HTO. t 237. 4 Step one – underline the column you are rounding to. This helps us identify which whole number we are rounding to. Step 2 – point to the column which comes before. The amount of tenths will show us whether we are going to round up or down. Step 3 look at the value you are pointing at and decide whether you are going to round up or down. 4 or less round down. 5 or more round up. We are pointing at a 4 so we are going to round down. The whole number will stay the same. 237. 4 rounded to the nearest whole number is 237.
- Slides: 8