diff --git a/core/blockly.js b/core/blockly.js
index 13c78ae5292..5ada7495ed3 100644
--- a/core/blockly.js
+++ b/core/blockly.js
@@ -311,9 +311,16 @@ exports.svgSize = common.svgSize;
  * Size the workspace when the contents change.  This also updates
  * scrollbars accordingly.
  * @param {!WorkspaceSvg} workspace The workspace to resize.
+ * @deprecated
  * @alias Blockly.resizeSvgContents
  */
-exports.resizeSvgContents = common.resizeSvgContents;
+const resizeSvgContents = function(workspace) {
+  deprecation.warn(
+      'Blockly.resizeSvgContents', 'December 2021', 'December 2022',
+      'Blockly.common.resizeSvgContents');
+  common.resizeSvgContents(workspace);
+};
+exports.resizeSvgContents = resizeSvgContents;
 
 /**
  * Copy a block or workspace comment onto the local clipboard.
@@ -346,7 +353,13 @@ exports.duplicate = clipboard.duplicate;
  * @param {boolean=} opt_onlyClosePopups Whether only popups should be closed.
  * @alias Blockly.hideChaff
  */
-exports.hideChaff = common.hideChaff;
+const hideChaff = function(opt_onlyClosePopups) {
+  deprecation.warn(
+      'Blockly.hideChaff', 'December 2021', 'December 2022',
+      'workspace.hideChaff');
+  common.hideChaff(opt_onlyClosePopups);
+};
+exports.hideChaff = hideChaff;
 
 /**
  * Returns the main workspace.  Returns the last used main workspace (based on
@@ -369,9 +382,16 @@ exports.defineBlocksWithJsonArray = common.defineBlocksWithJsonArray;
  * Is the given string a number (includes negative and decimals).
  * @param {string} str Input string.
  * @return {boolean} True if number, false otherwise.
+ * @deprecated
  * @alias Blockly.isNumber
  */
-exports.isNumber = utils.math.isNumber;
+const isNumber = function(str) {
+  deprecation.warn(
+      'Blockly.isNumber', 'December 2021', 'December 2022',
+      'Blockly.utils.math.isNumber');
+  return utils.math.isNumber(str);
+};
+exports.isNumber = isNumber;
 
 /**
  * Set the parent container.  This is the container element that the WidgetDiv,
diff --git a/core/common.js b/core/common.js
index 8e034f8f348..2a5406bc8e0 100644
--- a/core/common.js
+++ b/core/common.js
@@ -171,7 +171,7 @@ exports.resizeSvgContents = resizeSvgContents;
  * Returns the dimensions of the specified SVG image.
  * @param {!SVGElement} svg SVG image.
  * @return {!Size} Contains width and height properties.
- * @deprecated Use workspace.setCachedParentSvgSize. (2021 March 5)
+ * @deprecated Use workspace.getCachedParentSvgSize. (2021 March 5)
  * @alias Blockly.common.svgSize
  */
 const svgSize = function(svg) {