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
7 × 10 = ______
66 + 20 = ______
34 − 10 = ______
86 + 10 = ______
86 − 10 = ______
22 − 10 = ______
4 × 10 = ______
14 + 10 = ______
48 + 10 = ______
23 + 20 = ______
2 × 10 = ______
79 + 20 = ______
53 + 10 = ______
87 − 10 = ______
36 + 10 = ______
38 + 10 = ______
37 + 10 = ______
3 × 10 = ______
76 + 10 = ______
74 − 10 = ______
