Maths Problems - Extended Task

1. $375 + $127 = $502

$300 + $100 = $400

$75 + $27 = $102

$400 + $102 = $502

2. 659 + 196 = 855

600 + 100 = 700

50 + 90 = 140

9 + 6 = 15

700 + 140 + 15 = 855

3. $4500 - $2842 = $1658

$2842 + $1158 = $4000

$4000 + $500 = $4500

$1158 + $500 = $1658

4. 947 - 632 = 315

632 + 168 = 800

800 + 147 = 947

168 + 147 = 315

5. $1256 + $236 = $1490

$1256 + $240 = $1494

$1494 - $4 = $1490

6. 1683 - 387 = 1296

387 + 613 = 1000

1000 + 600 = 1600

1600 + 83 = 1683

613 + 600 + 83 = 1296

7. 1693 - 573 = 1120

573 + 427 = 1000

1000 + 600 = 1600

1600 + 93 = 1693

427 + 600 + 93 = 1120

8. 9463 - 3853 = 5610

3853 + 5000 = 8853

8853 + 147 = 9000

9000 + 463 = 9463

5000 + 147 + 463 = 5610