Addition and
Subtraction
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Master Mat h at Home
Ages 67 Grade
How to use thi s book Math No Problem! created Master Math at Home to help chil dren dev elop u ency in the subject and a rich understandin g of core co ncepts. Key fea tures of the Maste r Math at Home books incl ude: Carefully designed less ons that provi de structure, but also allo w flex ibility in how theyr e used. Fo r example , some child ren may want to wr ite numbers, w hile others might want to trace. S peech bubble s containing content d esigned to spark dive rse conve rsations, with many discussion po ints that don t have obvious rig ht or wrong answers. Rich illust rations that will guide childre n to a discuss ion of shapes and uni ts of measurement, al lowing them t o make connections to the wider wor ld around them. E xerci ses that allow a exibl e approach and can be adapte d to suit an y child s cognitive or functional abili ty. Clearly laid-out pages t hat encourage ch ildren to practic e a range of hi gher-order sk ills. A community of friendly and relata ble character s who introduce each less on and come along as y our child pr ogresses thro ugh the series. You can see more guidance on how to use the se books at mastermathathome.com . Were excite d to share all the ways you can learn m ath! Copyright 2022 Math No P roblem! Math No Problem! mastermath athome.com www.ma thnoproble m.com hello@m athnoproble m.com First A merican Edit ion, 202 Published in th e Uni ted S tates by DK Publishi ng 1745 Broadwa y, 20th Fl oor , New Yo rk, NY 10 22 23 24 25 2 6 1 0 9 8 7 6 5 4 3 2 1 002327 119Nov /20 All rig hts res erve d. Witho ut limi ting t he righ ts und er the c opyrigh t reser ved a bove, no par t of th is pub lication ma y be rep roduced , stored in or i ntroduce d int o a re triev al sy stem, or trans mitt ed, i n any form, o r by an y mea ns (e lect ronic, me chanica l, phot ocopy ing, recordin g, or ot herwise ), witho ut the prior writt en pe rmission of the copyr ight o wner . Published in Grea t Britai n by D orling K indersle y Limi ted A cata log r ecord f or thi s book is available from the Librar y of C ongress. ISBN: 97 8-0-7 0-51 -7 Printed and bou nd in China For the curious www.dk.c om Acknowled gments The pub lisher wo uld lik e to thank t he autho rs and c onsult ants A ndy Ps arianos, Jud y Horni gold, A dam Giff ord, Dr . Wo ng Khoon Y oo ng, and Dr . Anne Hermanso n. The Cast ledo wn ty peface has bee n used w ith permi ssion from the Colo phon F ou ndry . This book was made with Fore st Stewardship C ouncil certied paperone small step in DKs commitment to a sustainable future. Fo r more informat ion go to www.dk .com/our-gr een-pledge
Contents P age Reading and Writing to Place V alue Comparing Numbers Patt erns Adding Ones Adding T en s Adding in Colu mns Adding in Colu mns without Re naming Adding in Colu mns with Re naming (Pa rt 1) Adding in Colu mns with Re naming (Pa rt 2) Adding Three Nu mbers Subtracting Ones Subtracting T en s Subtracting in Column s Subtracting in Column s without Re naming Subtracting in Column s with Re naming (Pa rt 1) Subtracting in Column s with Re naming (Pa rt 2) Review and Challe nge Answers Elliott A mira C harles L ulu H olly R avi Jacob Emma Sam H an nah Ruby Oak
Starter Lesson Each box has 10 chocolates in it. We can count in tens to nd how many chocolates there are. Example Reading a nd Writing to 100 How man y choc olates a re there in total ? There are 10 boxes of chocolates. Ten, twenty, thirty, forty eighty, ninety, one hundred. There are 100 chocolates in total. fty, sixty, seventy
Practice ten 10 Count and trace the numb ers in words and in n umerals. twe nty fort y 40 thirt y 30 sixty fifty seventy one hund red 100 ninety eighty
Starter Example Lesson Place V alue How man y are the re? There ar e 35 . 35 = 3 te ns and 5 ones The di git 3 s tands fo r 30. The di git 5 s tands f or 5. Each one of these is 10 of . There are 3 tens. 10, 20, 30 There are 5 . 31, 32, 33, 34, 35 We can also show 35 in a number bond this way. tens ones
tens ones tens ones Practice The chil dren a re counti ng in t ens and ones. Can you h elp them by ll ing in the miss ing nu mbers? Sam Lulu Holly 32 = tens a nd ones = tens a nd ones = tens a nd ones tens ones
Starter Lesson Example Comparing Numbers Which nu mber i s the gr eatest? Which nu mber i s the sm allest? tens ones tens ones
71 is gr eater than 65. 71 > 65 71 is gre ater than 63 . 71 > 63 71 is the g reatest numbe r . 63 is le ss than 63 < 65 63 is the small est num ber . We need to compare the tens rst. 65 and 63 both have 6 tens. 71 has 7 tens. 7 tens is more than 6 tens. 71 has the most tens. We can use > to show greater than . We need to compare the ones next. 65 has 5 ones. 63 has 3 ones. 3 ones is less than 5 ones. 63 is less than 65. We can use < to show less than . tens ones
Practice Count in t ens and ones. Compare t he numb ers and ll in the b lanks. = tens and ones = tens and ones is less than . We can also use a number line to compare the numbers. We can order the numbers in two ways. 71, 5, greatest smal lest 6 3, 5, smallest great est 60 tens ones tens ones