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
88 + 20 = ______
48 + 20 = ______
38 − 10 = ______
74 + 10 = ______
6 × 10 = ______
48 − 10 = ______
28 − 10 = ______
3 × 10 = ______
64 − 10 = ______
33 − 10 = ______
11 + 20 = ______
59 + 10 = ______
86 − 10 = ______
87 + 20 = ______
44 + 20 = ______
23 + 20 = ______
34 + 20 = ______
79 + 20 = ______
52 + 20 = ______
89 − 10 = ______
