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
29 + 20 = ______
38 − 10 = ______
54 − 10 = ______
6 × 10 = ______
4 × 10 = ______
83 + 20 = ______
5 × 10 = ______
2 × 10 = ______
74 + 10 = ______
54 + 20 = ______
87 − 10 = ______
61 + 20 = ______
62 − 10 = ______
86 + 10 = ______
88 − 10 = ______
1 × 10 = ______
42 − 10 = ______
84 + 20 = ______
57 + 10 = ______
46 + 10 = ______
