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
65 + 10 = ______
57 − 10 = ______
75 − 10 = ______
8 × 10 = ______
79 − 10 = ______
75 + 20 = ______
76 + 10 = ______
4 × 10 = ______
5 × 10 = ______
54 + 20 = ______
31 − 10 = ______
9 × 10 = ______
6 × 10 = ______
83 + 10 = ______
55 + 10 = ______
35 − 10 = ______
99 − 10 = ______
83 + 20 = ______
3 × 10 = ______
84 − 10 = ______
