{"product_id":"mental-addition-and-subtraction-worksheet","title":"Mental Addition \u0026 Subtraction | Interactive Digital Lesson | 7 Units, 104 Questions | KS2 \u0026 11+","description":"\u003cp\u003e\u003cstrong\u003eBy the end of this lesson your child can look at any mental addition or subtraction question, bridging through a ten, adding a near multiple of ten, or counting up to subtract, and know instantly which method it needs.\u003c\/strong\u003e Mental methods are the difference between a child who finishes an 11+ arithmetic section and one who runs out of time on it.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eTopics covered:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAdding and subtracting within 10, and the number bonds every later method is built on\u003c\/li\u003e\n\u003cli\u003eAdding and subtracting within 20, bridging through ten instead of counting on fingers\u003c\/li\u003e\n\u003cli\u003eAdding to 100, choosing between adding the tens first and jumping to the next ten\u003c\/li\u003e\n\u003cli\u003eSubtracting to 100, deciding whether to count back or count up\u003c\/li\u003e\n\u003cli\u003eAdding to 1000, including near multiples like adding 99 or 199\u003c\/li\u003e\n\u003cli\u003eSubtracting to 1000, including counting up across a hundred boundary\u003c\/li\u003e\n\u003cli\u003eChoosing the method, reading the numbers first and picking the quickest route\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eYour child works through this lesson on any screen. They play with the tool at the start of a unit, click to reveal each step of a worked example, try the practice questions on paper, then click to check their own answer.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow it's structured:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEach unit opens with a worked example your child clicks through one line at a time, then 10 practice questions colour-coded easy, medium and hard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e104 questions in total\u003c\/strong\u003e, each with a click-to-reveal answer and a reveal-all option, plus a New Questions button that generates a fresh set whenever you want more\u003c\/li\u003e\n\u003cli\u003eA final 20-question mixed challenge pulling from all 7 units, including spot-the-mistake, always-sometimes-never and two-step word problems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eTwo tools a printed worksheet cannot give you.\u003c\/strong\u003e A bond machine that splits any whole into two parts and shows the adding fact and the taking away fact side by side, with the whole switchable from 10 up to 1000. And a bridging number line that takes the jump one hop at a time, so your child sees why 47 + 26 is easier as a hop to 50 and then a hop of 23, and why the same question can be done a second way.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eUse this if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eYour child is in Year 2 to Year 6 and still counts on their fingers for questions like 8 + 7\u003c\/li\u003e\n\u003cli\u003eYou are preparing for the 11+, where arithmetic speed decides how much time is left for the harder questions\u003c\/li\u003e\n\u003cli\u003eYour child reaches for a written column method for questions that should be done in their head\u003c\/li\u003e\n\u003cli\u003eYou want a resource your child can check their own work with, not one more thing on your to-do list\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eBuilt by an \u003cstrong\u003eexperienced maths teacher\u003c\/strong\u003e with over 3,000 hours of one-to-one tutoring experience and a Master's in Education.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFormat:\u003c\/strong\u003e Interactive digital lesson, link sent by email straight after purchase.\u003cbr\u003e\u003cstrong\u003eSuitable for:\u003c\/strong\u003e Year 2 to Year 6, KS1, KS2, 11+, SATs.\u003c\/p\u003e","brand":"School House Learning Centre","offers":[{"title":"Default Title","offer_id":53454325973258,"sku":null,"price":2.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/7091\/9434\/files\/mental-addition-subtraction-mastery-11-plus-gcse-interactive-lesson-v2.png?v=1785448869","url":"https:\/\/shlc-tutor.co.uk\/products\/mental-addition-and-subtraction-worksheet","provider":"SHLC-Tutors","version":"1.0","type":"link"}