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
55 − 10 = ______
74 + 10 = ______
41 − 10 = ______
7 × 10 = ______
71 + 10 = ______
75 + 10 = ______
2 × 10 = ______
64 + 20 = ______
75 + 20 = ______
78 + 20 = ______
42 + 10 = ______
5 × 10 = ______
3 × 10 = ______
96 − 10 = ______
79 + 10 = ______
99 − 10 = ______
35 − 10 = ______
9 × 10 = ______
39 + 20 = ______
66 − 10 = ______
