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
16 + 20 = ______
67 + 10 = ______
52 − 10 = ______
2 × 10 = ______
40 − 10 = ______
53 + 20 = ______
8 × 10 = ______
71 + 10 = ______
5 × 10 = ______
65 − 10 = ______
34 − 10 = ______
3 × 10 = ______
30 + 20 = ______
50 + 20 = ______
50 + 10 = ______
58 + 10 = ______
9 × 10 = ______
92 − 10 = ______
68 − 10 = ______
55 + 20 = ______
