diff --git a/homeassistant/components/number/__init__.py b/homeassistant/components/number/__init__.py
index 8c1800697a3..5ab1eaa7be4 100644
--- a/homeassistant/components/number/__init__.py
+++ b/homeassistant/components/number/__init__.py
@@ -200,7 +200,7 @@ class NumberEntity(Entity):
     _attr_native_max_value: float
     _attr_native_min_value: float
     _attr_native_step: float
-    _attr_native_value: float
+    _attr_native_value: float | None = None
     _attr_native_unit_of_measurement: str | None
     _deprecated_number_entity_reported = False
     _number_option_unit_of_measurement: str | None = None
diff --git a/homeassistant/components/template/number.py b/homeassistant/components/template/number.py
index d41bdee597b..89f4d22b957 100644
--- a/homeassistant/components/template/number.py
+++ b/homeassistant/components/template/number.py
@@ -14,6 +14,7 @@ from homeassistant.components.number.const import (
     ATTR_VALUE,
     DEFAULT_MAX_VALUE,
     DEFAULT_MIN_VALUE,
+    DEFAULT_STEP,
     DOMAIN as NUMBER_DOMAIN,
 )
 from homeassistant.const import CONF_NAME, CONF_OPTIMISTIC, CONF_STATE, CONF_UNIQUE_ID
@@ -119,10 +120,9 @@ class TemplateNumber(TemplateEntity, NumberEntity):
         self._min_value_template = config[ATTR_MIN]
         self._max_value_template = config[ATTR_MAX]
         self._attr_assumed_state = self._optimistic = config[CONF_OPTIMISTIC]
-        self._attr_native_value = None
-        self._attr_native_step = None
-        self._attr_native_min_value = None
-        self._attr_native_max_value = None
+        self._attr_native_step = DEFAULT_STEP
+        self._attr_native_min_value = DEFAULT_MIN_VALUE
+        self._attr_native_max_value = DEFAULT_MAX_VALUE
 
     async def async_added_to_hass(self) -> None:
         """Register callbacks."""
diff --git a/homeassistant/components/template/sensor.py b/homeassistant/components/template/sensor.py
index 8dcda988e9f..b52953c1a8a 100644
--- a/homeassistant/components/template/sensor.py
+++ b/homeassistant/components/template/sensor.py
@@ -205,7 +205,7 @@ class SensorTemplate(TemplateSensor):
     ) -> None:
         """Initialize the sensor."""
         super().__init__(hass, config=config, fallback_name=None, unique_id=unique_id)
-        self._template = config.get(CONF_STATE)
+        self._template: template.Template = config[CONF_STATE]
         if (object_id := config.get(CONF_OBJECT_ID)) is not None:
             self.entity_id = async_generate_entity_id(
                 ENTITY_ID_FORMAT, object_id, hass=hass
diff --git a/mypy.ini b/mypy.ini
index b936eab1fd0..d92cca692a4 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -2701,8 +2701,3 @@ ignore_errors = true
 [mypy-homeassistant.components.sonos.statistics]
 ignore_errors = true
 
-[mypy-homeassistant.components.template.number]
-ignore_errors = true
-
-[mypy-homeassistant.components.template.sensor]
-ignore_errors = true
diff --git a/script/hassfest/mypy_config.py b/script/hassfest/mypy_config.py
index c7bdd8e6c2b..d2c11d4744d 100644
--- a/script/hassfest/mypy_config.py
+++ b/script/hassfest/mypy_config.py
@@ -31,8 +31,6 @@ IGNORED_MODULES: Final[list[str]] = [
     "homeassistant.components.sonos.sensor",
     "homeassistant.components.sonos.speaker",
     "homeassistant.components.sonos.statistics",
-    "homeassistant.components.template.number",
-    "homeassistant.components.template.sensor",
 ]
 
 # Component modules which should set no_implicit_reexport = true.