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
1 × 10 = ______
70 + 10 = ______
25 + 20 = ______
9 × 10 = ______
84 − 10 = ______
45 − 10 = ______
88 + 10 = ______
19 + 20 = ______
96 − 10 = ______
66 − 10 = ______
58 + 10 = ______
32 + 20 = ______
5 × 10 = ______
7 × 10 = ______
38 + 10 = ______
74 − 10 = ______
8 × 10 = ______
77 − 10 = ______
6 × 10 = ______
34 − 10 = ______
