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
8 × 10 = ______
14 + 20 = ______
19 + 20 = ______
22 + 20 = ______
65 + 10 = ______
94 − 10 = ______
51 + 20 = ______
80 − 10 = ______
36 + 10 = ______
54 + 10 = ______
6 × 10 = ______
15 + 10 = ______
35 + 20 = ______
88 − 10 = ______
1 × 10 = ______
2 × 10 = ______
77 − 10 = ______
46 + 10 = ______
44 − 10 = ______
25 − 10 = ______
