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
72 + 20 = ______
5 × 10 = ______
58 + 10 = ______
9 × 10 = ______
57 + 10 = ______
4 × 10 = ______
25 − 10 = ______
56 + 20 = ______
86 + 10 = ______
24 + 10 = ______
29 − 10 = ______
36 − 10 = ______
54 + 20 = ______
66 − 10 = ______
3 × 10 = ______
26 − 10 = ______
2 × 10 = ______
38 + 20 = ______
39 + 10 = ______
58 + 20 = ______
