1. Calculate the difference between 983 and 389. The difference is given by $$983 - 389$$. 2. Circle three numbers that total 750 from the options 50, 150, 250, 350, and 450. We want to find three numbers $a, b, c$ such that $$a + b + c = 750$$. 3. Use digit cards 2, 4, 6, 7 to make a correct calculation: two two-digit numbers added equal 100. The problem is $$\_\_ + \_\_ = 100$$ using digits 2, 4, 6, 7 once each. 4. Circle the number closest to 900 from: 925, 891, 911, 808, 950. We compare absolute differences to 900. 5. Write the missing digits to complete the calculations: a) $$14 - 32 = ?$$ b) Two additions: $$15 + 15 = ?$$ and another involving digits $$44$$. --- **Step 1: Difference between 983 and 389** $$983 - 389 = 594$$ **Step 2: Three numbers that total 750** Try combinations: - $50 + 150 + 550$ not possible because 550 not in list. - $50 + 250 + 450 = 750$ Thus, circle **50, 250, 450**. **Step 3: Cards 2,4,6,7 to sum 100 in two two-digit numbers** Try pairs: - 42 + 58 (58 not from cards) - 46 + 54 (54 not from cards) - 74 + 26 = 100 (using digits 7,4,2,6 all once) So the equation is $$74 + 26 = 100$$ **Step 4: Number closest to 900** Calculate absolute differences: - $|925 - 900| = 25$ - $|891 - 900| = 9$ - $|911 - 900| = 11$ - $|808 - 900| = 92$ - $|950 - 900| = 50$ The closest is **891**. **Step 5: Missing digits calculations** a) $14 - 32 = -18$ b) $15 + 15 = 30$ No further digits are missing from given data. **Final answers:** 1. Difference: $594$ 2. Numbers circled: $50, 250, 450$ 3. Correct calculation: $74 + 26 = 100$ 4. Number closest to 900: $891$ 5. Calculations: a) $14 - 32 = -18$ b) $15 + 15 = 30$