Use the number line, to help you find the value of $19+343$19+343.

$19+343$19+343 $=$= $\editable{}$

Use the number line to help you find the value of $21+242$21+242.

Find the value of $142+311$142+311.

Find the value of $222+311$222+311.

Apply place value to partition, rearrange and regroup numbers to at least tens of thousands to assist calculations and solve problems