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
84 + 10 = ______
41 − 10 = ______
73 + 10 = ______
58 + 10 = ______
58 − 10 = ______
89 − 10 = ______
4 × 10 = ______
81 + 20 = ______
28 − 10 = ______
50 − 10 = ______
8 × 10 = ______
76 + 20 = ______
76 + 10 = ______
3 × 10 = ______
9 × 10 = ______
48 + 20 = ______
2 × 10 = ______
57 + 20 = ______
40 + 10 = ______
50 + 10 = ______
