5 Fill in the missing number. The sequence is -19; -15; -11; ... 2.1 Replace the box with >; < or =. -2 [] 0 2.2 Arrange these numbers in ascending order. 48; -50; -12; 0; 5; -63

Here are the solutions to the questions: 1.5 Fill in the missing number. The sequence is -19; -15; -11; Step 1: Find the common difference between consecutive terms. The difference between -15 and -19 is -15 - (-19) = -15 + 19 = 4. The difference between -11 and -15 is -11 - (-15) = -11 + 15 = 4. The common difference is 4. Step 2: Add the common difference to the last given term to find the missing number. The missing number is -11 + 4 = -7. The correct option is B. B) -7 2.1 Replace the x with >; < or = to make the statement below true. -2 x 0 Step 1: Compare the two numbers. On a number line, -2 is to the left of 0. Numbers to the left are smaller. Step 2: Choose the correct inequality symbol. Therefore, -2 is less than 0. -2 < 0 2.2 Arrange these numbers in ascending order. The numbers are 48; -50; -12; 0; 5; -63. Step 1: Identify and order the negative numbers from smallest (most negative) to largest. The negative numbers are -50, -12, -63. In ascending order: -63, -50, -12. Step 2: Place zero. 0 comes after all negative numbers. Step 3: Identify and order the positive numbers from smallest to largest. The positive numbers are 48, 5. In ascending order: 5, 48. Step 4: Combine all numbers in ascending order. -63, -50, -12, 0, 5, 48 2.3 Calculate: 2.3.1 -34 + (-16) Step 1: Simplify the expression. Adding a negative number is the same as subtracting its positive counterpart. -34 + (-16) = -34 - 16 Step 2: Perform the subtraction. -34 - 16 = -50 -50 2.3.2 18 + (-12) Step 1: Simplify the expression. Adding a negative number is the same as subtracting its positive counterpart. 18 + (-12) = 18 - 12 Step 2: Perform the subtraction. 18 - 12 = 6 6 That's 2 down. 3 left today — send the next one.