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
47 − 10 = ______
21 + 10 = ______
4 × 10 = ______
71 − 10 = ______
30 − 10 = ______
78 + 10 = ______
1 × 10 = ______
75 + 20 = ______
12 + 10 = ______
31 − 10 = ______
21 − 10 = ______
66 + 20 = ______
92 − 10 = ______
28 + 10 = ______
50 + 10 = ______
7 × 10 = ______
46 − 10 = ______
95 − 10 = ______
77 + 10 = ______
76 + 10 = ______
