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`
})()}
(function(){
let w = window.innerWidth;
function setHeaderCssVar() {
const headerEle = document.getElementById('shoplaza-section-header');
if(!headerEle){ return };
document.body.style.setProperty('--window-height', `${window.innerHeight}px`);
document.body.style.setProperty('--header-height', `${headerEle.clientHeight}px`);
const mdScorllHideEle = headerEle.querySelector('.header__mobile .header__scroll_hide');
if (mdScorllHideEle) {
document.body.style.setProperty('--header-scroll-hide-height-md', `${mdScorllHideEle.clientHeight}px`);
}
const pcScorllHideEle = headerEle.querySelector('.header__desktop .header__scroll_hide');
if (pcScorllHideEle) {
document.body.style.setProperty('--header-scroll-hide-height-pc', `${pcScorllHideEle.clientHeight}px`);
}
}
function handlResize() {
if(w == window.innerWidth){return};
w = window.innerWidth;
setHeaderCssVar();
};
function init(){
setHeaderCssVar();
window.removeEventListener('resize', window._theme_header_listener)
window._theme_header_listener = handlResize;
window.addEventListener('resize', window._theme_header_listener);
}
init();
})();
${data.index + 1}/13
Description
Introducing the Mathematics Teaching Roller Seal - the perfect tool to help your child excel in mathematics! This innovative and easy-to-use tool helps to develop basic addition and subtraction skills while offering hundred of math questions, all with one simple motion. Whether you're looking for an effective learning aid or something more engaging than a workbook, this Double-head Math Practice Number Rolling Stamp will provide hours of fun and practice through play. With two wheels on either side that contain different equations designed to reinforce various levels of mathematical understanding, it's never been easier to learn math. And the best part? The results can be checked quickly and easily with the question roller foot pedal. Get ready for your child to feel successful in their math journey with this genius learning system!
Specifications: Name: Mathematics Teaching Roller Seal Color: Random Color Stamp Size: 44x30x48mm Model: Addition, Subtraction Blot: 20x4mm Material: PVC
