wp_enqueue_script being ignored in custom theme

You can better try this way and let me know.

function wpb_adding_scripts() {
    wp_enqueue_style( 'slider', get_stylesheet_directory_uri() . '/css/calculator.css');
    wp_enqueue_script('jquery');
    wp_enqueue_script('calculator_script', get_stylesheet_directory_uri() . '/js/calculator.js');

} 
add_action( 'wp_enqueue_scripts', 'wpb_adding_scripts' );