Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
41 + 10 = ______
88 + 20 = ______
24 − 10 = ______
62 − 10 = ______
77 − 10 = ______
51 + 10 = ______
9 × 10 = ______
76 + 10 = ______
4 × 10 = ______
47 + 20 = ______
40 + 10 = ______
23 + 20 = ______
5 × 10 = ______
27 + 20 = ______
38 + 20 = ______
28 − 10 = ______
73 − 10 = ______
39 − 10 = ______
53 − 10 = ______
64 − 10 = ______
