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047_G3U04_WB_CA_˙—» ¿º 2011.4.5 3:23 PM ˘ ` 17 PDF_In 2540DPI 150LPI T
047-P2-1
Pair Up and Solve
Solve the problem below.
999-888+777-666+555-444+333-222
Step 1. Find 999-888.
Step 2. Pair up numbers so that the difference between the paired
numbers are the same.
999-888+777-666+555-444+333-222
Step 3. Write the correct numbers in the blanks.
999-888+777-666+555-444+333-222
= ,+ ,+ ,+
=,
047-P2-1
Pair Up and Solve
Solve the problem below.
999-888+777-666+555-444+333-222
Step 1. Find 999-888.
Step 2. Pair up numbers so that the difference between the paired
numbers are the same.
999-888+777-666+555-444+333-222
Step 3. Write the correct numbers in the blanks.
999-888+777-666+555-444+333-222
= ,+ ,+ ,+
=,
