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
99 − 10 = ______
41 + 10 = ______
6 × 10 = ______
59 − 10 = ______
69 − 10 = ______
5 × 10 = ______
16 + 20 = ______
41 + 20 = ______
73 − 10 = ______
52 − 10 = ______
54 − 10 = ______
2 × 10 = ______
92 − 10 = ______
76 + 20 = ______
16 + 10 = ______
74 − 10 = ______
39 + 10 = ______
84 − 10 = ______
7 × 10 = ______
1 × 10 = ______
