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
62 + 20 = ______
6 × 10 = ______
45 − 10 = ______
51 + 10 = ______
54 − 10 = ______
41 + 10 = ______
75 + 10 = ______
21 + 10 = ______
72 + 20 = ______
94 − 10 = ______
3 × 10 = ______
36 + 10 = ______
85 − 10 = ______
88 + 10 = ______
36 + 20 = ______
56 + 10 = ______
8 × 10 = ______
92 − 10 = ______
52 + 20 = ______
61 − 10 = ______
