Question

complete the equation for this model.
(number line from -30 to -10 with a blue curve arrow)
□ + 1 = □

Explanation:

Step1: Analyze the number line movement

The arrow starts from a point and moves towards the left? Wait, no, the blue curve's arrow direction: Wait, the number line has marks from -30, -28, -26, -24, ..., -10. Wait, maybe the initial point and the change. Wait, maybe the first number is, say, -10, and then moving left? No, wait the equation is \(\square + \square = \square\). Wait, maybe the movement is from -10 to -26? Wait, no, let's check the distance. From -10 to -26: the difference is \(-26 - (-10) = -16\)? No, wait maybe the first term is -10, then adding -16? Wait, no, let's see the number line. Wait, the arrow is going from right to left? Wait, the number line's right end is -10, left is -30. The blue curve starts from -10 and moves left to -26? Wait, the distance between -10 and -26 is \(|-26 - (-10)| = 16\), but in negative direction. So if we have \(-10 + (-16) = -26\)? Wait, no, let's check: \(-10 + (-16) = -26\). Wait, but the equation has a box, then + I (maybe a typo, maybe + a number). Wait, maybe the first number is -10, then adding -16? No, wait the number line: let's see the positions. Wait, the first box, then + (a number), equals the third box. Let's assume that the movement is from -10 to -26: so \(-10 + (-16) = -26\)? Wait, no, -10 + (-16) is -26? Wait, -10 -16 = -26. Yes. Alternatively, maybe the initial number is -26, and adding 16? No, the arrow direction: the blue curve's arrow is pointing left, so moving from right to left, which is subtracting, but in addition, it's adding a negative number. Wait, let's re-express: suppose the first number is -10, then we add -16 (since moving left 16 units: from -10 to -26, the change is -16). So \(-10 + (-16) = -26\)? Wait, no, -10 + (-16) is -26? Wait, -10 -16 = -26. Yes. So the equation would be \(-10 + (-16) = -26\)? Wait, but the middle box is "I" – maybe a typo for -16? Wait, maybe the correct numbers are: first box -10, second box -16, third box -26. Wait, but let's check: \(-10 + (-16) = -26\). Yes. Alternatively, maybe the first number is -26, and adding 16? No, because the arrow is moving left. Wait, maybe the first number is -10, then adding -16 gives -26. So the equation is \(-10 + (-16) = -26\)? Wait, but the middle box is "I" – maybe it's a typo for -16. So the three boxes: first box -10, second box -16, third box -26. Wait, but let's confirm: \(-10 + (-16) = -26\). Yes. So that's the equation.

Step2: Verify the addition

\(-10 + (-16) = - (10 + 16) = -26\). So that works.

Answer:

\(-10 + (-16) = -26\) (So the first box is \(-10\), the second box is \(-16\), the third box is \(-26\))