Level 3

Add and subtract four digit numbers II

Interactive practice questions

Evaluate $3005+3005$3005+3005 by doing the following.

Fill in the box with the missing number.

$3005=3000+\editable{}$3005=3000+

Fill in the box with the missing number.

$3005=\editable{}+5$3005=+5

Using the results from the previous parts, evaluate $3005+3005$3005+3005.

Easy

Less than a minute

Evaluate $8004+1006$8004+1006 by doing the following.

Using the fact that $4006=4000+6$4006=4000+6 and $4004=4000+4$4004=4000+4, evaluate $4006+4004$4006+4004.

Using the fact that $5050=5000+50$5050=5000+50 and $2050=2000+50$2050=2000+50, evaluate $5050+2050$5050+2050.

Use a range of additive and simple multiplicative strategies with whole numbers, fractions, decimals, and percentages.

Record and interpret additive and simple multiplicative strategies, using words, diagrams, and symbols, with an understanding of equality