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
58 + 20 = ______
7 × 10 = ______
80 + 20 = ______
5 × 10 = ______
40 − 10 = ______
70 + 20 = ______
23 + 10 = ______
62 + 10 = ______
72 + 20 = ______
3 × 10 = ______
96 − 10 = ______
95 − 10 = ______
54 + 10 = ______
67 − 10 = ______
87 − 10 = ______
94 − 10 = ______
45 + 20 = ______
61 + 10 = ______
15 + 20 = ______
9 × 10 = ______
