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
64 − 10 = ______
12 + 10 = ______
65 + 20 = ______
89 − 10 = ______
23 − 10 = ______
4 × 10 = ______
76 + 10 = ______
67 + 10 = ______
77 − 10 = ______
56 + 10 = ______
9 × 10 = ______
46 + 20 = ______
80 − 10 = ______
29 + 10 = ______
73 + 20 = ______
54 + 20 = ______
66 + 20 = ______
36 + 10 = ______
24 − 10 = ______
94 − 10 = ______
