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
76 + 10 = ______
76 − 10 = ______
88 + 20 = ______
38 + 20 = ______
3 × 10 = ______
50 − 10 = ______
68 + 20 = ______
66 + 10 = ______
24 − 10 = ______
8 × 10 = ______
5 × 10 = ______
62 + 10 = ______
69 − 10 = ______
32 − 10 = ______
38 − 10 = ______
42 + 10 = ______
34 − 10 = ______
9 × 10 = ______
68 − 10 = ______
90 − 10 = ______
