Subtracting using the column method

Maths

Which equation could be used to estimate the answer to: 653 098 - 118 542?

The digits in the ones and hundreds columns.

The digits in the ones and thousands columns.

The digits in the thousands and ten thousands columns.

Which columns would require regrouping when column subtracting: 563 357 - 325 129?

3. Use the column method to calculate the answer to: 561 998 - 138 422 =

4. Use the column method to calculate the answer to: 183 609 - 21 788 =

Bar modelling helps us practise drawing straight lines.

Bar modelling offers us a chance to draw a nice picture to match our maths questions.

Bar modelling offers us a chance to represent equations in a different way which can help us to solve them.

Bar modelling tells us when our answer is incorrect.

Estimating before calculating helps you set out your calculations on paper.

Estimating before calculating helps you to practise your adding strategies.

Estimating before calculating provides an approximate answer which you can check your actual answer against.

Estimating before calculating shortens the amount of time it takes to solve an equation.

Why might it be useful to estimate the answer to an equation prior to calculation?

2. What is a suitable estimate for the equation: 451 082 + 339 721?

3. Use the column method to solve: 289 109 + 463 229 =

4. Use the column method to solve: 632 781 + 10 385 =

5. Use the column method to solve: 5411 + 1389 + 2013 =