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
9 × 10 = ______
62 − 10 = ______
71 − 10 = ______
67 − 10 = ______
37 − 10 = ______
70 + 10 = ______
3 × 10 = ______
74 − 10 = ______
61 + 20 = ______
7 × 10 = ______
8 × 10 = ______
26 − 10 = ______
16 + 10 = ______
76 + 10 = ______
66 + 10 = ______
52 + 20 = ______
1 × 10 = ______
21 − 10 = ______
65 + 20 = ______
92 − 10 = ______
